a women is 7 times as old as her son after 5 years she will be 4 times as old as her son what are the present age of the mother and son
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Answered by
1
Answer:
Mother (m) = 4 x son's age (s) so
m = 4s
in 20 years she will be 2 x son's age in 20 years, so
m + 20 = 2(s + 20) which is
m + 20 = 2s + 40, so m= 2s + 20
substituting 4s for m gives
4s = 2s + 20, so 2s = 20 and son's age is 10
m is 4s so mother is 40
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Answered by
0
Answer:
mother's age 40years
son's age 10 years
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