SOLUTION: There are two brothers and two sisters. in 10 years they will total 100 in their ages. How much will the total be in 7 years? 88 ??

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Question 388859: There are two brothers and two sisters. in 10 years they will total 100 in their ages. How much will the total be in 7 years?
88 ??
Answer by rfer(16322) About Me  (Show Source):
You can put this solution on YOUR website!
10/100=7/x
10x=700
x=70