Question

a is twice as old as B five years ago was three times 20 age find the number

Answer 1

Let the b be x and a be 2x.
Five years ago,
b=(x-5)
a=2x-5
A.q.
2x-5=20+3(x-5)
2x-5=20+3x-15
2x-5=5+3x
3x-2x=-5-5
x=-10 (b)
a=2x =-20