Question

Devaughn is 12 years younger than Sydney. The sun of their ages is 78. What is Sydney’s age?

Answer 1

Sydney’s age is 45 & Devaughn's age is 33

Explanation:

D= Devaughn

S= Sydney

D+S= 78

S-12=D

(S-12)+S=78

2S=90

S=45

D=33