Parul is 15 yrs younger than his brother rahul. 5 years later he will half his brothers age. Find their ages
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Let Rahul's age be x years.
Then, Parul's age will be equal to (x-15) years.
After years:
Rahul's age = (x + 5) years
Parul's age = (x - 15 + 5) years = (x + 5)/2 years (given)
Therefore,
(x-10) = (x+5)/2
2x - 20 = x + 5
2x - x = 5 + 20
Therefore, x = Rahul's age = 25
x - 15 = Parul's age = 25-15 = 10
Then, Parul's age will be equal to (x-15) years.
After years:
Rahul's age = (x + 5) years
Parul's age = (x - 15 + 5) years = (x + 5)/2 years (given)
Therefore,
(x-10) = (x+5)/2
2x - 20 = x + 5
2x - x = 5 + 20
Therefore, x = Rahul's age = 25
x - 15 = Parul's age = 25-15 = 10
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