1.

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

Answer»

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



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