Five years ago, a man was seven times as old as his , while five year hence , the man will be four times as old as his son. Their persent age is 75,15. How is it comes ?
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Answer:
15,75
Step-by-step explanation:
let 5 years ago age of son was = x
man = 7x
their present age, x + 5, 7x + 5
5 years hence/after ,
7x + 10 = 4 × ( x + 10)
3x = 30 => x = 10
their present ages are
son = (x + 5) = 10 +5 = 15 &
man = 7x + 5 = 7(10) + 5 = 75
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