Question

Select two ratios that have the same unit rate as 2:4

A. 1:3

B. 1:2

C. 3:5

D. 5:10

E.4:6

F. 6: 10

Answer 1

B and D

Explanation:

So basically we have to find the unit rate of 2:4.

(remember to find the unit rate we have to simplfy the ratio until one of the quantities is 1)

2:4 (divide by 2 on each side)

1:2 (B)

now we can use this unit rate of 1:2 to find out other equal ratios

1:2 (multiply 5 on both sides)

5:10 (D)

Answer 2

B and D

Explanation:

2:4 when divided by 2 gets you 1:2

and 2:4 multiplied by 2.5 gets you 5:10