Question

The ratio of red balls to blue balls in a bag is 1:3.

If there are 9 red balls, how many blue balls are there?

Answer 1

Explanation:

Ratio of red balls to blue balls=1:3

let the number of red balls be x

and the number of blue balls be 3x

if there are 9 red balls then x=9

the number of blue balls is 3(9)=27

Answer 2

3

Explanation:

if there are 9 red balls then there will be 3 blue balls because 3 is 1/3 to 9

an example being there are 8 pink eggs the ratio is 2:4 then it would be 4 green eggs because 4 is 2/4 of 8