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A is 9 years older than B who is six times as old as C. Total of ages of A, B and C is 139 years...

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A is 9 years older than B who is six times as old as C. The total of the ages of A, B and C is 139 years. What is the product of A and B ages ?

posted Apr 6, 2018 by anonymous

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1 Answer

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A = B + 9
B = 6C
A + B + C = 139
(B + 9) + B + (B/6) = 139
B = 60
A = 69
C = 10

A × B = 60 × 69 = 4140.

answer Apr 6, 2018 by Tejas Naik



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