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Question

Father says to son "I am 5 times as old as you were when i was as old as you are". If sum of their ages is 48, what is the age of the father?

A
20
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B
9
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C
45
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D
40
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Solution

The correct option is D 40Let the present age of father and son is x and y Then as per question x+y=48 ........................(1)Given x=5y .......................................................(2)substituting equation 2 in equation 1 we get 5y+y=486y=48y=8.........................................................................(3)Putting value of y in eqn 2 we get x=5(8)=40We get x=40Then age of father is 40 years

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