Ratio and Rates

There are 4 blue marbles, 6 red marbles and 7 green marbles in a box. Represent the relationship of the number of red marbles to the number of green marbles in the form of a:b

• 10:17

• 6:7

• 4:7

• 7:17

There are 4 blue marbles, 6 red marbles and 7 green marbles in a box. Represent the relationship of the number of blue marbles to the number of green marbles in the form of a:b

• 4:7

• 10:7

• 4:17

• 6:7

There are 4 blue marbles, 6 red marbles and 7 green marbles in a box. Represent the relationship of the number of green marbles to the total number of marbles in the form of a:b

• 6:7

• 4:7

• 7:17

• 17:7

Simplify 25 ml to 46 ml to 0.024 l

• 25:46:0.024

• 25:46:24

• 5:23:24

• 5:23:12

Simplify 20 seconds to 3/2 minutes to 43 seconds

• 20:1.5:43

• 20:90:43

• 2 : 1.5 : 43

• 20: 15 : 43

Simplify 5 months to 1 year to 1  1/2 years

• 5 : 1 : 1.5

• 1 : 2 : 3

• 5 : 12 : 18

• 50 : 10 : 15

Choose the correct pairs of equivalent ratios

• 2 : 3 : 6 and 4 : 9 : 36

• 3: 4 : 7 and 18 : 24 : 42

• 45 : 54 : 33 and 15 : 18 : 11

• 36 : 72 : 86 and 4 : 8 : 9

The water level in a pond rises from 1 m to 3 m in 4 hours. State the rate of increase of the water level in m per hour.

• 2 m per hour

• 1/4 m per hour

• 3/4 m per hour

• 1/2 m per hour

Given the price for 12 oranges is RM 9. The unit rate is

• RM 1.33 per orange

• RM 0.75 per orange

• 12 oranges per RM 9

• RM 9 per 12 oranges

Choose the unit rate (A unit rate is the rate with its second quantity equals to 1)

• RM 2 per tin

• 110 km per hour

• 3 books per 5 days

• RM 14 per 2 kg