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Question
the ratio of x and y three years ago was
4:5 and that after three years will be 5:6.then the sum of the ages of x and y is?
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Answer
Let the ratio of the ages of X and Y three years ago be 4k and 5k
So, their ages now are 4k+3 and 5k+3
Their ages after three years will be 4k+6 and 5k+6
They are in the ratio 5:6
So, (4k+6)*6 = (5k+6)*5
Or k = 6
Hence, their ages today are 4k+3, 5k+3 = 27 and 33
And the sum is 60
