2012 Primary 3 Mathematics End Year Examination 7

Section A

For each question, four options are given. One of them is the correct answer. Make your choice (1, 2, 3 or 4).

1.

Which of the following is 1000 more than 4808?

1. 3808
2. 4880
3. 5800
4. 5808

2.

Find the difference between 406 and 8000.

1. 7694
2. 7604
3. 7594
4. 7406

3.

504 cm = ________

1. 5 m 4 cm
2. 5 m 40 cm
3. 50 m 4 cm
4. 50 m 40 cm

4.

What is the mass of the soccer balls?

1. 2 kg 20 g
2. 2 kg 40 g
3. 2 kg 200 g
4. 2 kg 400 g

5.

The volume of water in the container is ________ mℓ.

1. 52 mℓ
2. 55 mℓ
3. 60 mℓ
4. 65 mℓ

6.

What is the total sum of money shown above?

1. $65.85
2. $65.90
3. $66.85
4. $66.90

7.

Siti divided a cake into 8 equal pieces. She gave 2 pieces to her sisters. What fraction of the cake did she give away?

1. ${\displaystyle \frac{1}{5}\mathrm{}}$
2. ${\displaystyle \frac{1}{6}\mathrm{}}$
3. ${\displaystyle \frac{1}{3}\mathrm{}}$
4. ${\displaystyle \frac{1}{4}\mathrm{}}$

8.

Which one of the following is a pair of perpendicular lines?

1. AB and BC
2. BC and BD
3. AD and DE
4. AF and DE

9.

Express 3 hours and 8 minutes in minutes.

1. 38 min
2. 188 min
3. 308 min
4. 380 min

10.

The figure below is made up of 1-cm squares. Find the perimeter of the figure.

1. 36 cm
2. 40 cm
3. 42 cm
4. 92 cm

11.

Rina collected 2735 seashells last year. This year she collected 234 seashells more than last year. How many seashells did she collect this year?

1. 2501
2. 2969
3. 5075
4. 5704

12.

Write 2 kg 5 g in grams.

1. 205 g
2. 2005 g
3. 2050 g
4. 2500 g

13.

John bought a book for $13.95. He gave the cashier 2 ten-dollar notes. How much change did he receive?

1. $6.05
2. $7.05
3. $20.00
4. $33.95

14.

The above graph shows the countries visited by a group of girls during the June holiday.

What is the total number of girls who visited USA and Europe?

1. 300
2. 310
3. 320
4. 330

15.

What is the missing number?

${\displaystyle \frac{6}{8}=\frac{?}{12}\mathrm{}}$

1. 11
2. 10
3. 3
4. 9

16.

The clock below shows the time Halinah left her home. What time did she leave her home?

1. 5 min past 2
2. 25 min past 2
3. 10 min past 5
4. 12 min past 5

17.

Find the difference in area between rectangle A and square B.

1. 6 m²
2. 8 m²
3. 15 m²
4. 40 m²

18.

Jenny has 322 curry puffs. She can pack up to 8 curry puffs into each box. What is the least number of boxes that she has to use to pack all the curry puffs?

1. 41
2. 40
3. 5
4. 4

19.

Lisa took 1 h 25 min to do her Mathematics worksheet and 35 min less to do her Science worksheet. She completed both worksheets at 3.05 p.m. When did she start doing her worksheets?

1. 5.00 p.m.
2. 5.05 p.m.
3. 1.05 p.m.
4. 12.50 p.m.

20.

Find the area of the unshaded part.

1. 7 m²
2. 9 m²
3. 56 m²
4. 63 m²

Section B

Write your answer in the space provided. For questions which requre units, give your answers in the units stated. All diagrams are not drawn to scale. Answers in fractions must be expressed in the simplest form.

1.

Write five thousand, four hundred and twenty in numerals.

Answer: ________

2.

The digit '8' in 9082 is in the ________ place.

Answer: ________

3.

What is the sum of 4009 and 5991?

Answer: ________

4.

Find the product of 309 and 7.

Answer: ________

5.

The above graph shows the people who went to the Great Singapore Sale at the Singapore Expo.

represents 8 persons

How many more babies than senior citizens were at the sale?

Answer: ________

6.

Arrange the fractions below in descending order.

${\displaystyle \frac{7}{12},\frac{5}{9},\frac{2}{3}\mathrm{}}$

Answer: _____, _____, _____

7.

Draw a line that is parallel to line PQ and passing through point R.

8.

The length of the rectangle below is three time its breadth. What is the area of the rectangle?

Answer: ________ cm²

9.

What is the length of the pair of scissors shown below?

Answer: ________ cm

10.

What is the total mass of the pineapple and watermelon?

Answer: ________ g

11.

Jenny has 2 ℓ 52 mℓ of apple juice and she poured half of it into a jug. How much of apple juice was left?

Answer: ________ mℓ

12.

Muthiva had $11.40. She used $5.85 to buy a bowl of chicken rice and a cup of drink. How much money was left?

Answer: $________

13.

The graph below shows the number of pupils who visited the Science Center.

The entrance fee is $5 per child. Find the total amount paid by all the pupils.

Answer: $________

14.

Ali ate ${\displaystyle \frac{1}{6}\mathrm{}}$ of a cake and kept ${\displaystyle \frac{1}{3}\mathrm{}}$ of the cake in the refrigerator. He gave the rest of the cake to his brother. What fraction of the cake did he give to his brother? (Give your answer in the simplest form)

Answer: ________

15.

Which two angles in the figure below are smaller than a right angle?

Answer: Angle ________ and Angle _________

16.

What is the missing number?

5208, 5008, 4608, ____?____, 3208, 2208

Answer: ________

17.

Mr. Tan had 4080 eggs to deliver. After he delivered 1800 to Supermart A and some eggs to Supermart B, he had 390 eggs left. How many eggs did he deliver to Supermart B?

Answer: ________ eggs

18.

Study the set of numbers below:

Find the value of:

Answer: ________

19.

Mangoes were sold at 3 for $8.
Maryanne paid for $56 for some mangoes. How many mangoes did she buy?

Answer: ________

20.

What is the mass of object B as shown below?

Answer: ________ g

Section C

Write your answer with suitable units in the spaces provided. All diagrams are not drawn to scale. Answers in fractions must be expressed in the simplest form.

1.

A ribbon is 5 m long. It is used to tie 4 identical parcels and each parcel needs 35 cm of ribbon. What is the length of ribbon left?








Answer: ________

2.

Tina had a wire that is 3 m long. She cut some of the wire to bend into 3 different squares as shown below.

a) What was the length of wire used to form the figure?








Answer: ________

b) What was the length of wire left?








Answer: ________

3.

A packet of beads was shared equally among 28 girls.
8 girls decided to give up their beads to the rest.
As a result, the rest of the girls received 2 more beads each. How many beads were there in the packet at first?








Answer: ________

4.

148 eggs are packed into either trays of 10 or 6.
20 trays are used altogether. How many trays have only 6 eggs in them?








Answer: ________

5.

Amy has twice the number of stickers as Bernice has. Candy has thrice the number of stickers as Amy has. If Candy has 504 stickers, how many stickers do the 3 girls have altogether?








Answer: ________

6.

a) Find the mass of object A








Answer: ________

b) Find the mass of object B








Answer: ________

Section A (Answers)

Answers

1.

D.

2.

C.

3.

A.

4.

D.

5.

C.

6.

C.

7.

D.

8.

C.

9.

B.

10.

B.

11.

B.

12.

B.

13.

A.

14.

C.

15.

D.

16.

B.

17.

B.

18.

A.

19.

D.

20.

C.

Section B (Answers)

Answers

1.

5420

2.

tens

3.

10000

4.

2163

5.

16

6.

${\displaystyle \frac{2}{3},\frac{7}{12},\frac{5}{9}\mathrm{}}$

7.

8.

27 cm²

9.

24 cm

10.

3400 g

11.

1026 mℓ

12.

$$5.55

13.

$210

14.

${\displaystyle \frac{1}{2}\mathrm{}}$

15.

Angle a and Angle d

16.

4008

17.

1890 eggs

18.

30

19.

21 mangoes

20.

400 g

Section C (Answers)

Answers

1.

360 cm

2.

a) 192 cm

b) 108 cm

3.

140

4.

13

5.

756

6.

a) 140 g

b) 155 g

2012 Primary 3 Mathematics End Year Examination 6

Section A

For each of the following questions, four options are given. Choose the correct option (1, 2, 3, or 4).

1.

Express 9 thousands and 57 ones in numerals.

1. 9507
2. 9057
3. 9570
4. 9750

2.

Thomas bought 216 candies. He shared the candies equally with 3 of his friends. How many candies would each of them have?

1. 54
2. 72
3. 648
4. 864

3.

Nicole's tuition class started at 11 o'clock in the morning. It lasted for 90 minutes. What time did her tuition class end?

1. 11.90 a.m.
2. 12.30 a.m.
3. 12.30 p.m.
4. 1.30 p.m.

4.

Oranges are sold at 5 for $2. How many oranges can I buy with $30?

1. 12
2. 15
3. 75
4. 150

5.

Sumei shaded ${\displaystyle \frac{2}{8}\mathrm{}}$ of a square. Which diagram below shows the square that Sumei has shaded?

1. 
2. 
3. 
4. 

6.

The length of a basketball court is 20 m. Its breadth is 12 m. John walked round the basketball court once. What was the total distance he walked?

1. 20 m
2. 32 m
3. 64 m
4. 240 m

7.

What is the missing number below?

4 + 8 + 4 + 8 + 4 + 8 = 4 x ____

1. 8
2. 9
3. 12
4. 36

8.

Mr. Jamal arranged 110 chairs into 5 equal rows. How many chairs were there in each row?

1. 20
2. 22
3. 55
4. 220

9.

The diagram below shows a balance. 3 apples are placed at one end of the balance while 1 apple and a block of wood with a mass of 378 g are placed on the other end of the balance. Find the mass of 1 apple.

1. 126 g
2. 189 g
3. 504 g
4. 756 g

10.

The missing number in the number pattern is ________.

10, 20, 40, 70, _____, 160, 220

1. 100
2. 110
3. 120
4. 140

Section B

Write your answer in the space provided. Give your answers in the units stated and in its simplest form whenever possible.

1.

What is 157 less than the sum of 792 and 859?

Answer: ________

2.

Fill in each box with the correct digit.

Answer: _____, _____

3.

How many times does the digit '3' appear in the numbers 1 to 34?

Answer: ________

4.

William had $12 more than Billy. After their mother gave each of them $8, both of them had $40 altogether. How much money did WIlliam have at first?

Answer: $________

5.

The figure below shows a number line. What is the value of A?

Answer: A = ________

6.

Which one of the lines in the figure below is perpendicular to line XY?

Answer: ________

7.

Alvin's weighing scale is faulty. The mass it shows is always 8 kg heavier. If the reading below shows Alvin's mass, what is Alvin's actual mass?

Answer: ________ kg

8.

The figure below shows a fish tank with a capacity of 240 ℓ. It is filled with 110 ℓ of water. How many pails of capacity 5 ℓ are needed to fill the fish tank to its brim?

Answer: ________

9.

${\displaystyle \frac{1}{4}+\frac{5}{12}=?}$

What is the missing fraction?

Answer: ________

10.

Based on the numbers below, what is the difference between the largest odd number and the smallest even number?

7924, 3897, 7938, 7893, 3982

Answer: ________

11.

Alan has some sweets. He gave ${\displaystyle \frac{1}{8}\mathrm{}}$ of the sweets to John and ${\displaystyle \frac{1}{4}\mathrm{}}$ of them to Jason. What fraction of the sweets had he left?

Answer: ________

12.

Figure A is a square piece of paper (not drawn to scale) with a perimeter of 56 cm. It is then folded into half. What is the area of the new figure B?

Answer: ________ cm²

13.

Mrs. Lee baked 9 cakes with 18 packets of flour. How many such cakes can she bake with 12 packets of flour?

Answer: ________

14.

Carol baked 6 948 biscuits. She packed an equal number of biscuits into each packet. The packets of biscuits were kept equally into 6 tins. In each tin, there were 3 packets of biscuits. How many biscuits were there in each packet?

Answer: ________

15.

Siti is three times as old as Ben. Maggie is 14 years younger than Siti. If Ben is 19 years old, how old is Maggie?

Answer: ________ years old

16.

Susie wanted to buy a pen that costs $1.60 and a correction tape that costs $2.50. On checking her wallet, she found that she was short of $0.60. How much money was in her wallet?

Answer: $________

17.

Isabelle started her Science project at 1.45 p.m. She needed 3 h 25 min to complete it. What time would she complete her Science project?

Answer: ________ p.m.

18.

The following graph shows the number of tourists visiting 3 places of interest on Sunday.

What is the total number of tourists who visited the Science Centre, Bird Park and the Zoo on Sunday?

Answer: ________

19.

The following graph shows the number of tourists visiting 3 places of interest on Sunday.

The ticket to the Bird Park costs $7 each. It costs $2 more than the ticket to the Zoo. How much money was collected from the sale of tickets to the Zoo on Sunday?

Answer: $________

20.

Find the perimeter of the figure below.

Answer: ________ cm

Section C

Write your answer in the answer space provided. Express your answers in the units stated and in its simplest form whenever possible.

1.

3056 pupils took part in a walkathon. 2178 of them were boys. How many more boys than girls took part in the walkathon?








Answer: ________

2.

Kathy has 105 fewer beads than Jane. Sally has 65 more beads than Jane. If Jane has 305 beads, how many beads do they have altogether?








Answer: ________

3.

Last year, Amy and Ben were of the same height. This year, Ben grew taller by 8 cm and Amy grew taller by 5 cm. If their total height is 253 cm, what was Amy's height last year?








Answer: ________

4.

Nancy is given some money to buy wallets for her friends. If she buys 3 wallets, she will have $6 left. If she wants to buy 5 wallets, she will be short of $8. How much money does Nancy have?








Answer: ________

5.

Jeffrey jogged two rounds around a square field. If the total distance covered was 1 km 800 m, find the distance of one side of the square field. (Give your answer in metres)








Answer: ________

6.

Grace baked some cakes and sold all of them at a funfair.
She sold twice as many chocolate cakes as butter cakes.
She sold three times as many butter cakes as cheese cakes.
How many chocolate cakes did Grace make if a total of 990 cakes were sold at the funfair?








Answer: ________

7.

Vanessa bought 4 similar rings and a necklace for $1248. The necklace cost $448 more than a ring.

a) Find the cost of each ring.








Answer: ________

b) Find the cost of the necklace.








Answer: ________

8.

Susan took 2 h 35 min to complete her homework.
Wilson took 55 min lesser time than Susan while Betty took 15 min longer than Wilson to complete her homework.

a) How long did Wilson take to complete his homework?








Answer: ________

b) How long did Betty and Susan take to complete their homework altogether?








Answer: ________

9.

The figure is made up of a square ABEF and a rectangle BCDE. If the area of the shaded part is 18 cm², find

a) the perimeter of the rectangle BCDE








Answer: ________

b) the area of the unshaded part of the figure








Answer: ________

10.

a) Find the value of the missing number:

Answer: ________

b) Observe the following pattern and find the missing number.

Answer: ________

Section A (Answers)

Answers

1.

B.

2.

A.

3.

C.

4.

C.

5.

D.

6.

C.

7.

B.

8.

B.

9.

B.

10.

B.

Section B (Answers)

Answers

1.

1494

2.

8, 6

3.

9

4.

$18

5.

${\displaystyle \frac{1}{2}\mathrm{}}$

6.

Line CD

7.

69 kg

8.

26 pails

9.

${\displaystyle \frac{2}{3}\mathrm{}}$

10.

3911

11.

${\displaystyle \frac{5}{8}\mathrm{}}$

12.

98 cm²

13.

6 cakes

14.

386 biscuits

15.

43

16.

$3.50

17.

5.10 p.m.

18.

260 tourists

19.

$600

20.

60 cm

Section C (Answers)

Answers

1.

1300 more boys

2.

875 beads

3.

120 cm

4.

$27

5.

225 m

6.

594

7.

a) $160

b) $608

8.

a) 1 h 40 min

b) 4 h 30 min

9.

a) 30cm²

b) 72 cm²

10.

a) 7

b) 2007

2012 Primary 3 Mathematics End Year Examination 5

Section A

For each of the questions, four options are given. One of them is the correct answer. Make your choice (1, 2, 3 or 4).

1.

In 7489, the digit 8 is in the ________ place.

1. ones
2. tens
3. hundreds
4. thousands

2.

Express 9 km 6 m in metres. The answer is ________.

1. 96 m
2. 906 m
3. 9006 m
4. 9060 m

3.

Convert 3500 cents to dollars.

1. $0.35
2. $3.50
3. $35.00
4. $350.00

4.

Jonathan has $33. His sister has $17.20 less than what he has. How much does his sister have?

1. $15.20
2. $15.80
3. $16.20
4. $16.80

5.

5000 + 3 + 60 = _________

1. 5036
2. 5063
3. 5360
4. 5630

6.

Divide 79 by 9. What is the quotient?

1. 6
2. 7
3. 8
4. 9

7.

What fraction has the smallest value?

1. ${\displaystyle \frac{1}{2}\mathrm{}}$
2. ${\displaystyle \frac{1}{5}\mathrm{}}$
3. ${\displaystyle \frac{1}{8}\mathrm{}}$
4. ${\displaystyle \frac{1}{12}\mathrm{}}$

8.

Find the sum of 211 and 799.

1. 588
2. 988
3. 1000
4. 1010

9.

In the figure below, how many angles are greater than a right angle?

1. 5
2. 2
3. 3
4. 4

10.

What is the missing numerator?

${\displaystyle \frac{2}{3}=\frac{?}{15}\mathrm{}}$

1. 8
2. 10
3. 12
4. 14

11.

Multiply 570 by 4. The answer is ________.

1. 20 hundreds and 8 tens
2. 20 hundred and 80 tens
3. 22 hundreds and 8 tens
4. 22 hundreds and 80 tens

12.

Eunice had 7 boxes of books. Each box contained 28 books. How many books were left after Eunice sold 48 books?

1. 98
2. 148
3. 196
4. 244

13.

Jeremy has 759 cards. His brother has 452 cards more than him. How many cards do they have altogether?

1. 1211
2. 1663
3. 1850
4. 1970

14.

Cindy ate ${\displaystyle \frac{1}{2}\mathrm{}}$ of the pizza. Doreen ate ${\displaystyle \frac{1}{8}\mathrm{}}$ of the same pizza. What fraction of the pizza was eaten altogether?

1. ${\displaystyle \frac{3}{8}\mathrm{}}$
2. ${\displaystyle \frac{5}{8}\mathrm{}}$
3. ${\displaystyle \frac{3}{14}\mathrm{}}$
4. ${\displaystyle \frac{7}{24}\mathrm{}}$

15.

12 hundreds is ________ tens less than 1900.

1. 70
2. 178
3. 700
4. 1888

16.

18 x 5 = 2 x 3 x ______

1. 5
2. 8
3. 3
4. 15

17.

Thomas cut a cake into 11 equal pieces. He gave 4 pieces to his friend and 5 pieces to his brother. What fraction of his cake was left?

1. ${\displaystyle \frac{2}{11}\mathrm{}}$
2. ${\displaystyle \frac{4}{11}\mathrm{}}$
3. ${\displaystyle \frac{5}{11}\mathrm{}}$
4. ${\displaystyle \frac{9}{11}\mathrm{}}$

18.

The clocks below show the start of a lesson and the end of the lesson. How long was the lesson?

1. 1 h 50 min
2. 2 h 50 min
3. 3 h 50 min
4. 50 min

19.

If the perimeter of rectangle A is 42 cm, what is the length of the rectangle?

1. 15 cm
2. 18 cm
3. 30 cm
4. 36 cm

20.

Amanda is 6 years older than Churu. In 4 years' time, their total age is 34 years old. How old is Churu now?

1. 9 years old
2. 10 years old
3. 14 years old
4. 15 years old

Section B

Write the correct answers in the blanks provided.

1.

Complete the following number patterns.

1620, 1740, 1860, ________, 2100

Ans: ________

2.

How many 20¢ coins can be exchanged for a dollar?

Ans: ________

3.

Arrange the fractions in order, starting with the smallest.

${\displaystyle \frac{2}{7},\frac{11}{12},\frac{2}{3},\frac{5}{6}\mathrm{}}$

Ans: ________, ________, ________, ________
(smallest)

4.

Use the digits below to form the greatest 4-digit number which is divisible by 5.

3, 5, 1, 4

Ans: ________

5.

Bernice is thinking of a 2-digit even number that is greater than 30 but smaller than 40. The product of the digits of the number is equal to 18. What is the 2-digit even number?

Ans: ________

6.

The figure is made up of identical 1 cm squares. Find the area of the figure.

Ans: ________ cm²

7.

How many pairs of parallel lines are there in the figure below?

Ans: ________

8.

This bar graph shows the number of sweets that 4 boys have. Find the difference between the boy with the most number of sweets and the boy with the least number of sweets.

Ans: ________

9.

This bar graph shows the number of sweets that 4 boys have. If the 4 boys share the sweets equally, how many sweets would each of them have?

Ans: ________

10.

Eugenia had four $5 notes. She bought a T-shirt that costs $16.85. How much money had she left?

Ans: ________

11.

What is the missing digit?

Ans: ________

12.

What are the values of A and of B?

Ans: A: ________
B: ________

13.

Bernard had thrice as much money as Charlie. Charlie had $462 less than Bernard. How much did they have altogether?

Ans: $________

14.

Janice started doing her homework at 3.30 p.m. She spent 45 minutes on her homework. What time did she complete her homework?

Ans: ________ p.m.

15.

What is the mass of if the mass of is 10 kg?

Ans: ________ kg

16.

Karen, Peggy and Joyce shared a roll of ribbon. Peggy received twice as much as Joyce and Karen received thrice as much as Joyce. If the roll of ribbon was 5 m 4 cm long, what was the length of ribbon that Joyce received?

Ans: ________ cm

17.

The table below shows the scores awarded to 4 participants during a story telling competition. The participant with the highest total score won the competition.

Participant	Judge 1	Judge 2	Judge 3	Judge 4	Position
A	9	8	8	7	2nd
B	8	6	7	6	4th
C	10	9	10	8	1st
D	8	6	8	?	3rd

Participant D was 3^rd in position after the competition. What was the smallest possible score Judge 4 could have awarded to Participant D?

Ans: _______

18.

Mike has twice as many game cards as Paul. After Paul bought 60 game cards, Paul has twice as many game cards as Mike. How many game cards does Paul have at first?

Ans: ________

19.

Amanda wanted to buy a watch. She saved $4 on the first day. Everyday she would save $4 than the previous day. After 6 days, Amanda saved the exact amount of money to buy the watch. How much did the watch cost?

Ans: $________

20.

Teresa and Jaya sold 145 rice dumplings. Jaya and Nancy sold 275 rice dumplings. How many more rice dumplings did Nancy sell than Teresa?

Ans: ________

Section C

Solve the following story sums.

1.

Bernice, Caroline and Diana shared 1500 stickers. Caroline and Diana had a total of 1045 stickers while Bernice and Caroline had the same number of stickers.

(a) How many stickers did Bernice have?








Answer: ________

(b) How many more stickers did Diana have than Caroline?








Answer: ________

2.

Carol bought some marbles. She gave ${\displaystyle \frac{3}{5}\mathrm{}}$ of them to her friends and ${\displaystyle \frac{1}{10}\mathrm{}}$ of them to her cousins. If she was left with 60 marbles, how many marbles did she buy?








Answer: ________

3.

Josephine has $405. She has twice as many $2 notes as $5 notes. What is the total value of $2 notes that she has?








Answer: ________

4.

Anna placed some cones along a straight line with an equal distance between each of them. The distance between the 5^th and the 13^th cone was 1 m 20 cm. The distance between the 9^th and the last cone is 1 m 50 cm. How many cones did Anna place along the straight line?








Answer: ________

5.

Xiao Hui had a piece of rectangle strip of paper. She folded according as what was shown below.

(a) What is the area of the piece of paper before the fold?









Answer: ________

(b) What is the perimeter of the piece of paper before the fold?








Answer: ________

Section A (Answers)

Answers

1.

B.

2.

C.

3.

C.

4.

B.

5.

B.

6.

C.

7.

D.

8.

D.

9.

C.

10.

B.

11.

C.

12.

B.

13.

D.

14.

B.

15.

A.

16.

D.

17.

A.

18.

A.

19.

A.

20.

B.

Section B (Answers)

Answers

1.

1980

2.

5

3.

${\displaystyle \frac{2}{7},\frac{2}{3},\frac{5}{6},\frac{11}{12}\mathrm{}}$

4.

4315

5.

36

6.

7 cm²

7.

3

8.

14

9.

15

10.

$3.15

11.

3

12.

A: 417
B: 130

13.

$924

14.

4.15 p.m.

15.

2 kg

16.

84 cm

17.

6

18.

20

19.

$84

20.

130

Section C (Answers)

Answers

1.

(a) 455

(b) 135

2.

200

3.

$180

4.

19 cones

5.

(a) 24 cm²

(b) 28 cm