SOLUTION: Word Problems A man is twice as old as his son. His son is twice as old as his sister. The sum of their ages is 77 years. Find each persons age.

Question 1135247: Word Problems
A man is twice as old as his son. His son is twice as old as his sister. The sum of their ages is 77 years. Find each persons age.
Found 2 solutions by ikleyn, josgarithmetic:
Answer by ikleyn(52788) (Show Source): You can put this solution on YOUR website!
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Sister + Son + Man = 77 Sister + 2*Sister + 2*(2*Sister) = 77 Sister + 2Sister + 4*Sister = 77 7*Sister = 77 =================> Sister = 77/7 = 11. Answer. Sister = 11; Son = 2*11 = 22; Man = 4*11 = 44.

Solved.

Answer by josgarithmetic(39617) (Show Source): You can put this solution on YOUR website!

PERSON AGE man 4x son 2x daughter x Sum 77

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PERSON AGE man 44 son 22 daughter 11 Sum 77

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