Question

What can be said about the numbers x and y if: a. 10%of x = 20% of y? b. 10% of x = 50% of y?

Answer 1

a. x = 2y

b. x = 5y

Explanation:

a. 10% of x = 20% of y

x * 10/100 = y * 20/100

x/10 = y/5

x/y = 10/5

x/y = 2

x = 2y

b. 10% of x = 50% of y

x * 10/100 = y * 50/100

x/10 = y/2

x/y = 10/2

x/y = 5

x = 5y