Question 1124086
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William + Father + Mary  = 51.


W       + 6W     + (W-5) = 51     (<<<---=== Father = 6*William;  Mary = William -5)


8W = 51 + 5 = 56  ====>  W = 56/8 = 7.



<U>Answer</U>.  William is 7 years old;  the father is 6*7 = 42 years old;  Mary is 7-5 = 2 years.


<U>Check</U>.   7 + 42 + 2 = 51.   ! Correct !
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