Question 1055885: The sum of a brother's and sister's age is 57 years. if the brother is 5 years older than the sister, find their ages Found 2 solutions by Reema Kumari, ikleyn:Answer by Reema Kumari(5) (Show Source):
You can put this solution on YOUR website! Let the age of sister be x,
then,brother's age=x+5
A/Q
x+x+5=57
2x+5=57
2x=52
x=26
Since, sister's age=26yrs
brother's age=26+5=31yrs
You can put this solution on YOUR website! .
The sum of a brother's and sister's age is 57 years. if the brother is 5 years older than the sister, find their ages
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Solution (Two equation approach)
B + S = 57, (1)
B - S = 5. (2)
Add the equations (1) and (2). You will get
2B = 57 + 5 = 62.
Hence, B = = 31.
Thus the brother's age is 31.
Then the sister is 31-5 = 26 years old.
