Question

A boy is 26 years younger than his father.In 3 years time, his age will be 1/3 his father's age.find the boys present age.

Answer 1

f=26+b...(1)
(b-3)=1/3(f-3)
3b-9=f-3
3b=f-3+9
3b=f+6
3b-6=f
3b-6=26+b
2b=26+6
2b=32
b=16
F=26+16
f=42

Answer 2

19 = (1/3) 45 ?
try again

f = b + 26 yes

b+3 = (1/3)(f+3) this was wrong

3 b + 9 = f+3

3 b - f = -6

3b -b - 26 = -6

2 b = 20

b = 10
f = 36
========================
now
13 = (1/3)(39)
yes