SOLUTION: The brother is 5 years older then his sister in 15 years the sum of their ages will be 61

Question 1057264: The brother is 5 years older then his sister in 15 years the sum of their ages will be 61
Found 2 solutions by josmiceli, Alan3354:
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Let = his sister's age now
= brother's age now
= his sister's age in 15 yrs
= brother's age in 15 yrs
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and

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Sister is 13 now
Brother is 18 now
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check answer:

OK

Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
The brother is 5 years older then his sister in 15 years the sum of their ages will be 61
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The sum of their ages now is 31
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B + S = 31
B - S = 5
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