1.

5 year ago A man was 8 times as old as his son 5 years hence the father will be thricethe age of his son find their present age

Answer»

Let the past AGE of son = x

Let the past age of father = 8x

So,

PRESENT AGES are x+5 and 8x+5

Future age of son = x+10

Future age of father = 8x+10

Given

8x+10 = 3*(x+10)

8x+10 = 3x+30

8x-3x = 30-10

5x = 20

x = 20/5

x = 4

8x = 32

x+5 = 10

8x+5 = 37


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