Question

Coach Johnson is 10 years older than Tim. When Tim started football 3 years ago, Coach Johnson was twice his age. How old is Tim now?

Numerical Answers Expected!

Answer 1

C = coach; T = Tim
C = T + 10;
C-3 = 2(T-3), so C = 2T - 6 + 3 = 2t - 3
2t - 3 = t + 10
t = 13, Tim's age now, so coach is 23; three years ago they were 10 & 20

Answer 2

let age of Tim is x yrs
Jonson age is x+10
three yrs ago age of Tim=x-3
and age of coach=x+7
but
x+7=2(x-3)
x+7=2x-6
x=13 yrs:)