Dana H.

asked • 02/14/17

Ten years from now, A will be twice as old as B. Five years ago, A was three times as old as B. What are the present ages of A and B?

These are the equations I come up with - but they are not correct.  I need help fixing them:
 
A + 10 = 2B
A - 5 = 3B

Kendra F.

You are adjusting the current age for A but not B. In ten years A = A + 10 ; B = B + 10
so your first equation should be:
A + 10 = 2(B + 10)
 
Likewise, five years ago, A = A - 5 ; also B = B - 5
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02/14/17

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