SOLUTION: Annie is twice as old as Benny. Benny is three times as old as Cindy. If their total age is 70 years, then how old is Benny?

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Question 1163821: Annie is twice as old as Benny. Benny is three times as old as Cindy. If their total age is 70
years, then how old is Benny?

Answer by josgarithmetic(39616) About Me  (Show Source):
You can put this solution on YOUR website!
-----------
how old is Benny?
------------
Annie          2b
Benny           b
Cindy           b/3
TOTAL           70

2b%2Bb%2Bb%2F3=70
3b%2Bb%2F3=70
9b%2Bb=210
10b=210
highlight%28b=21%29