Banking Quantitative Aptitude Sample Paper Quantitative Aptitude Sample Paper-17

The respective ratio between Parul's present age and Rohit's present age is 7: 5. The sum of their ages 5 yr from now will be 94. After how many years, Rohit's age will be equal to Parul's present age?                        [IBPS (SO) IT 2014]

A) 21

B) 7

C) 14

D) 18

E) 24

Correct Answer: C

Solution :

Let Parul's present age be 7x and Rohit's present age be 5x.

Then, \[7x+5x+10=94\]

\[\Rightarrow \] \[12x=84\]\[\Rightarrow \]\[x=7\]

So, Parul's present age \[=7\times 7=49\,yr\]

Rohit's present age \[=5\times 7=35\,yr\]

After 14 yr Rohit's age will be equal to parul's present age.