Answers

2015-07-04T14:25:11+05:30
Let the present age of the first girl be 5x and the second girl be 7x.
Now,
there ages 8 yrs ago = (5x-8) / (7x-8) = 7/13
65x - 104 = 49x - 56
16x = 48
x=3
The age of the first girl = 5*3 = 15 yrs
The age of the second girl = 7*3 = 21 yrs. 
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