Question

Devon is five years younger than Sydney the sum of their ages is 57 what is Sydney

Answer 1

Sydney is 31 years old.

Explanation:

LET age of Devon be x years

and let age of Sydney be y years

if x=y-5-------(i)

x+y= 57 (sum)

Using (i)

(y-5)+y=57

2y=62

y=31