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Answers
Chapter 1

5
6

Exercise 1-01

$721.21
$576.25

7 a i 8

1 a $1330 b
$2660 c 160
$69

ii

7

iv
5 v
$8.32

iii

4

vi $12.48

$3173.08 c $1586.54
2 a $6875 b

vii
$12.48 viii $16.47

ix $66.56

3 a

x $87.36 xi

xii $82.35

$67 600

b month is usually longer than 4 weeks.
A
c
$5633.33 d $37.14

$49.92

b
$286.19

4 a $153.76 b hours
4.5

Exercise 1-04

$1170.43
5 a $879.23 b

1 a $61.25 b
$221.20

6

$15.68

c
$581.88 d
$1206.63

7

$3900

2 a $486.50 b
$2655.50

8 a $178

3

b
11

4 a $60 644.40 b $4664.95 c $816.37

$3492.10

c
Teacher to discuss.

5

$6536.62

9 a Job 3, the salary.

6

$5963

b
Teacher to discuss.

7

$376

$5420.89
8 a $363.69 b

Exercise 1-02

9

$448

1 a $25.80 b
$34.40

10 a $78.75

c
$21.54 d
$28.72

Exercise 1-05

e
$36.90 f
$49.20

$122.40

4

d 500 e
$12
$6570 f
$570

$123

3

$272.50

2

$28.50

iv
$399 v $114

$38

vi $228

b
$741
7 a $12 b
$54
8

$105

9 a $135.20 b
7:30 a.m. c 1 hour

$4603.50

4 iii $117.25

3

5 a 2 b
$1060.20
6 a i $19 ii

Teacher to check.

1 a $2250 b
$40 c
$6000

g
$46.88 h
$62.50
2

b

$554.40

5

$10 600

$61 c
$159.50
6 a $18 b
7 a $18 b
$48.91 c
$214
8

$2235

9

More than $8.35, $8.50 or $9 would be suitable.

10 $88

d p.m. e $101.40 f a.m.
3:30
11

11 $412 700

Exercise 1-03

13 a $16.80 b
$62.40 c
417

1 a $962.15 b
$2290.88
2

$611.25

3

$1002

4

$43
12 a $20 440 b 400
14 $2875
15 Melissa $17 988.05, publisher $41 972.11.

$1113.30

430

18_ncm11_sb_38946_ans_4pp.indd 430

16 a $204 b
$945.20 c
$2363

ISBN 9780170238946

20/11/12 7:01 PM

Exercise 1-06
1 $82
3

2

c
Approx.