Working With Numbers

Question 0

Convert 0.73 (with dots) into a fraction.

Answer 0

73/99

Question 1

Convert 7/11 to a recurring decimal.

Answer 1

0.63 (imagine the dots)

Question 2

Find 58% of 230 cm.

Answer 2

133.4 cm

Question 3

Increase $745 by 53%.

Answer 3

$1139.85

Question 4

What percentage is $1.10 of $13.75.

Answer 4

8%

Question 5

If Mark takes 135 staples out of a pack, which is then 18% full, how many were in there to begin with?

Answer 5

175 staples

Question 6

Find the new price of a $745 iPad discounted by 15%.

Answer 6

$403.75

Question 7

A farm was sold to a young couple for $480 000. It prospered and 5 years later was sold for $1 300 000. Find the profit as a percentage of the cost price.

Answer 7

170.83%

Question 8

Discounted by 20%, Tony bought a TV for $313 less than its original price. What was the original price?

Answer 8

$1565

Question 9

How much simple interest would be earned when investing $72 500 for 4 years at 3.5% p.a.?

Answer 9

$10 150

Question 10

What is the simple interest rate when investing $825 000 collects $289 000 after 6 years?

Answer 10

5.8% p.a.

Question 11

Simplify 72 : 20

Answer 11

18 : 5

Question 12

Simplify 4 hrs : 30 min

Answer 12

8 : 1

Question 13

If two fisherman catch 60 fish in the ratio 8:7, how many do they each get?

Answer 13

32, 28

Question 14

If concept car X uses up 465 L in 5 hrs, write its fuel consumption in L/hr.

Answer 14

93 L/hr

Question 15

Convert 1 L/m to mL/km

Answer 15

1 000 000 mL/km