NIFT UG 2010 Question Paper with solutions

Question : 140 of 149

Marks: +1, -0

The ratio between the ages of A and B at present is 2 : 3. Five years hence the ratio of their ages will be 3 : 4. What is the present age of A in years?

10
15
25
None of these

Validate

Solution:

Suppose the present ages of A and B are 2x and 3x respectively.
from question,

{2x+5}/{3x+5}=3/4

8x+20=9x+15

x=5

Hence, present age of

A=5×2=10

yrs

Go to Question:

Prev Question

Next Question