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The ratio of Raju and Prateek's age is 3...

The ratio of Raju and Prateek's age is 3:5 and sum of their ages is 80 yr. The ratio of their ages after 10 yr will be

A

`2:3`

B

`1:2`

C

`3:2`

D

`3:5`

Text Solution

Verified by Experts

The correct Answer is:
A
Let the ages of Raju and Prateek be 3x yr and 5x yr, respectively. Then, `3x + 5x = 80`
`8x = 80 implies x= 10`
`therefore` Required ratio `((3 xx 10 + 10))/((5 xx 10 + 10)) = 40/60 = 2:3`
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