if thrice the sons age is added to father's age ,the sum is 70 . if twice the father's adge is added to the sons age the sum is 85 . find the age of father and son
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Step-by-step explanation:
3S +F =70
2F +S =85
S =85-2F
3(85-2F) + F =70
255-6F +F =70
255-5F =70
5F = 255-70=185
F = 37
S=85-(2×37)=11
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