Ratio and Proportion Quiz

What is the simplified ratio of 12 to 18?

• 2:3

• 3:2

• 4:5

• 6:9

If the ratio of boys to girls in a class is 3:4, what fraction of the class are girls?

• 3/7

• 4/7

• 1/2

• 4/3

Which of the following ratios is equivalent to 5:10?

• 1:3

• 3:6

• 1:2

• 2:5

The ratio of red to blue marbles is 2:5. How many blue marbles are there if there are 14 marbles in total?

• 4

• 5

• 10

• 12

A recipe uses flour and sugar in the ratio 3:2. If you use 9 cups of flour, how many cups of sugar do you need?

• 5

• 6

• 3

• 2

Are the ratios 6:8 and 3:4 in proportion?

• Yes

• No

• Only sometimes

• Can’t tell

In a bag, the ratio of green to yellow sweets is 4:1. If there are 25 sweets altogether, how many are green?

• 5

• 10

• 20

• 15

Simplify the ratio 24:36.

The ratio of pens to pencils is 5:3. If there are 40 pens, how many pencils are there?

Divide 60 sweets between A and B in the ratio 2:3.