SOLUTION: William is 1/6 as old as his father but 5 years older than his sister Mary. If the sum of all their ages is 51, how old is William

Question 1124086: William is 1/6 as old as his father but 5 years older than his sister Mary. If the sum of all their ages is 51, how old is William

Found 2 solutions by ikleyn, josgarithmetic:
Answer by ikleyn(52792) (Show Source): You can put this solution on YOUR website!
.

William + Father + Mary = 51. W + 6W + (W-5) = 51 (<<<---=== Father = 6*William; Mary = William -5) 8W = 51 + 5 = 56 ====> W = 56/8 = 7. Answer. William is 7 years old; the father is 6*7 = 42 years old; Mary is 7-5 = 2 years. Check. 7 + 42 + 2 = 51. ! Correct !

Answer by josgarithmetic(39618) (Show Source): You can put this solution on YOUR website!

William w Father 6w Mary-sister w-5 TOTAL 51

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