SOLUTION: Next year Barbara's age will be the difference between Carol's age next year and Sarah's age two years ago. Their present ages add up to 70 and Carol is the oldest. How old is Caro

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Question 1192181: Next year Barbara's age will be the difference between Carol's age next year and Sarah's age two years ago. Their present ages add up to 70 and Carol is the oldest. How old is Carol?
Found 2 solutions by ikleyn, josgarithmetic:
Answer by ikleyn(52781) About Me  (Show Source):
You can put this solution on YOUR website!
.

Who are "they" in the second sentence ?



Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
NEXT YEAR, b%2B1=%28c%2B1%29-%28x-2%29
Present ages, b%2Bc%2Bx=70
and c%3Eb and c%3Ex.

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b%2B1=c-x%2B3
b-c%2Bx=2

Simplified, this system: system%28b%2Bc%2Bx=70%2Cb-c%2Bx=2%29
If try E1-E2, then 2c=68, and then highlight%28c=34%29.
From this, the best you know is that b%2Bx=34.