Ratio and Proportion

Write if the given proportion is 'True' or 'False':
8 : 9 = 24 : 18

• TRUE

• FALSE

Write 'True' or 'False'.
6 : 8 and 9 : 12 are equivalent ratios of 3 : 4

• TRUE

• FALSE

Express 45 to 90 in its lowest term.

• 3 : 4

• 2 : 3

• 1 : 2

• 5 : 9

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

• 30 : 2

• 1 : 4

• 1 : 6

• None of the above

In a class there are 30 boys and 12 girls. Find the ratio of number of boys to number of girls.

• 2 : 5

• 5 : 2

• 3 : 4

• None of the above

In a class there are 15 boys and 20 girls, find the ratio of number of girls to the total number of students in the class 

• 3 : 4

• 4 : 3

• 4 : 7

• 7 : 4

In an animal shelter, the ratio of dogs to cats is 5 to 3. There are 25 dogs.  Write and solve a proportion to find the number of cats.

• c=15

• c=18

• c=21

• c=16

Decrease 350kg in the ratio 3 : 5.

• 300kg

• 250kg

• 200kg

• 210kg

Increase 2 hours 30 minutes in the ratio 6 : 5.

• 200 minutes

• 180 minutes

• 150 minutes

• 250 minutes

A class has 75 students. If there are 50 boys. What is the ratio of girls to the class?

• 1 : 3

• 3 : 2

• 5 : 7

• 2 : 3