Mental Calculation - Ratio and proportion

Answer should be in simplest form.

4 boys to 10 girls

• 5:2

• 2:5

• 4:5

Answer should be in simplest form.

10 eggs to 20 breads

• 1:2

• 10:20

• 2:1

Simplify as fully as possible 28:42

• 14 : 21

• 3 : 2

• 1 : 1.5

• 2 : 3

In a class of 10 boys and 14 girls the ratio of girls to boys is

• 10 : 14

• 1 : 2

• 7 : 5

• 5 : 7

What ratio is equivalent to 3:5

• 30 : 500

• 9 : 15

• 13 : 1 5

• 1 : 2

Determine the ratio of the following
'30 minutes to 2 hours'

• 30 : 2
• 1 : 4
• 1 : 6
• None of the above

There are 4 birds and 6 snakes. What is the ratio of birds to snakes?

• 6/4

• 2/3

• 1/3

• 10/16

The ratio of boys to girls in grade VIII is 4 to 5. There are 20 girls in total . How many boys are there in VIII grade?

• 16

• 15

• 20

• 14

Express this ratio in simplest form!!

There are 16 male teachers out of 40.

• 16:40

• 2:5

• 2:9

• 90:75

Mike went into the local Store because they have so many deals!! The following deal that she was debating is 4 bars of soap that cost $5. What would 8 bars cost her?

• $10

• $11

• $12

• $13