Ratio And Proportion Ques 2
Question-
The respective ratio between the present age of Ram, Rohan and Raj is $3: 4: 5$. If the average of their present age is 28 years then what would be the sum of the age of Ram and Rohan together after 5 years?
(1) 45 years
(2) 55 years
(3) 52 years
(4) 59 years
(5) None of these
(Bank Of Baroda PO Exam. 13.03.2011)
Show Answer
Correct Answer: (4)
Solution: (4)
Let the present age of Ram, Rohan and Raj be $3 x, 4 x$ and $5 x$ years respectively.
$\therefore 3 x+4 x+5 x=3 \times 28$
$\Rightarrow 12 x=84 $
$\Rightarrow x=\frac{84}{12}=7$
Sum of the age of Ram and Rohan after 5 years
$=3 x+4 x+10=7 x+10$
$=7 \times 7+10=59$ years
BETA
