Ratio Rate and Proportion

A ratio equivalent to 3 : 7 is:

• 3 : 9

• 6 : 10

• 9 : 21

• 18 : 49

Tags

CCSS.6.RP.A.3A

The ratio 35 : 84 in simplest form is:

• 5 : 7

• 7 : 12

• 5 : 12

• none of these

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

In a class there are 20 boys and 15 girls. The ratio of boys to girls is:

• 4 : 3

• 3 : 4

• 4 : 5

• none of these

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

The first, second and fourth terms of a proportion are 16, 24 and 54 respectively. Then the third term is:

• 36

• 28

• 48

• 32

Tags

CCSS.7.RP.A.2A

7 : 12 is equivalent to:

• (i) 28 : 40

• 42 : 71

• 72:42

• 42 : 72

Tags

CCSS.6.RP.A.3A

Find the fourth proportion to 2,3,6

• 18

• 12

• 9

• 4

If a:b = 2:3 and b:c = 4:3, then find a:b:c

• 8:12:9

• 2:3:8

• 2:3:9

• 2:3:12

Tags

CCSS.6.RP.A.3A

If Hazel makes 20 garlands in 40 minutes then the number of garlands Hazel can make in 28 minutes are

• 21

• 18

• 16

• 14

Tags

CCSS.6.RP.A.3B

Harry bought a new digital camera for $2000. If it captures 150 pictures in 10 minutes then the number of pictures camera can take in one second is

• 0.30 pictures per second

• 0.25 pictures per second

• 0.35 pictures per second

• 0.15 pictures per second

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Do ratios have units?

• yes

• no

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2