Sushil is now 4 times as old as Sunil. 5 years ago Sushil was 7 times as old as Sunil was then. Find the present ages of each of them?
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sunil age=x
sushi age =x-4
5 years ago sushil age was 7 times as old as sunil
By problem,
x(x-4) =x(5-7x)
X^2-4x=5x-7x^2
2x^2-3x-5=0
2x^2-5x+2x-5=0
x=5 and x=-2
sunil age is 5 and sushil age is 1
sushi age =x-4
5 years ago sushil age was 7 times as old as sunil
By problem,
x(x-4) =x(5-7x)
X^2-4x=5x-7x^2
2x^2-3x-5=0
2x^2-5x+2x-5=0
x=5 and x=-2
sunil age is 5 and sushil age is 1
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