CHAPTER 4 : RATIOS, RATES AND PROPORTIONS

The ratio 4: 7 equivalent to?

• 3 : 4

• 27 : 48

• 12 : 21

The ratio 9 : 16 is equivalent to?

• 3 : 4

• 27 : 48

• 12 : 21

Express 0.48 : 0.36 : 0.96 in the simplest form.

• 4 : 3 : 8

• 12 : 9 : 18

• 16 : 23 : 48

If a : b = 2 : 5, find the value of a when b = 30.

• 8

• 10

• 12

Given that x : y = 4 : 7 and y : z = 7 : 8, state the ratio of x : y : z.

• 2 : 3 : 8

• 4 : 7 : 8

• 12 : 14 : 32

Given a : b = 5 : 8 and b : c = 6 : 7. State the ratio of a : b : c.

• 15 : 12 : 21

• 30 : 40 : 56

• 15 : 24 : 28

The ratio of the cost of a book to the cost of a pen is 3 : 4. If the cost of the book is RM 15, what is the cost of the pen?

• RM20.00

• RM15.00

• RM12.00

Convert 45 kilometres per hour to metres per second.

• 40 metres per second

• 22.5 metres per second

• 12.5 metres per second

A car travels 25 metres per second. How many metres does it travel in an hour?

• 90 000 m

• 19 000 m

• 9 000 m

9 eggs cost RM 2.87. What is the cost of 27 eggs?

• RM 6.80

• RM 8.61

• RM 10.81