RATIO AND PROPORTION

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

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

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

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

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

Tags

CCSS.6.RP.A.2

CCSS.6.RP.A.1

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

• TRUE
• FALSE

Tags

CCSS.7.RP.A.2A

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

• TRUE
• FALSE

Tags

CCSS.6.RP.A.3A

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

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

CCSS.6.RP.A.3

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