Question

A man is five times as old as his grandson. Five years ago the man was seven times as
old as his grandson. Find their present ages​

Answer 1

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Answer 2

Answer:

present age

let the age of present grandson be x.

present age of man= 5x

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5 years ago

age of grandson= x-5

age of man = 5x-5

7(x-5)= 5x-5

7x-35= 5x-5

7x-2x= 35-5

5x= 30

x= 30/5

x= 6 years

therefore, present age of man= 5x = 5 x 6 = 30 years