Father and son those ages total 60 years.6 years ago father's age 5 times of son age.6 years after how many years has son?
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F+s=60....(.1)
f-6=5(s-6)
f-6=5s-30
f-5s=-24.....(2)
(2)-(1)
-6s=-84
s=14
f-6=5(s-6)
f-6=5s-30
f-5s=-24.....(2)
(2)-(1)
-6s=-84
s=14
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