A says to B,"I am twice as old as you were when ,I was as old as you are". the sum of their present age 63 years then, their present ages are?
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Step-by-step explanation:
Given :-
- A says to B,"I am twice
- the sum of their present age 63 years
To Find :-
- present ages are?
A was as old as B is now (A - B) years ago.
A = 2 (B - (A - B))
= 2 (2B - A)
= 4B - 2A
3A = 4B
A + B = 63
A = 63 - B
4B = 189 - 3B
7B = 189
B = 27
A = 63 - 27 = 36
3A = 189 - 3B
A + B = 63.
- Hence A was 27 (9 years ago), B was 27 - 9 = 18. And A is 2 x 18 = 36.
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