Question

Devaughn's age is two times Sydney's age. The sum of their ages is 21. What is Sydney's age?

Answer 1

The age is 7

Explanation:

Devaughn's age is two times Sydney's age

and the sum of their ages is ? Let’s Sydney's age is X, Devaughn's age is (2X+X=21)

Therefore 3X=21

Rearranged is X= 21 divide 3

Therefore Sydney’s age is 7