Number System Ques 5
Question
The difference between $20 \%$ of a number and $\frac{4}{5}$ th of the same number is 2499 . What is $\frac{2}{7}$ th of that number?
(1) 2156
(2) 1190
(3) 1090
(4) 1465
(5) None of these
(IBPS RRBs Office Assistant CWE
Exam. 09.09.2012
Show Answer
Answer: (2)
Solution: (2)
Let the number be $x$.
$\therefore \frac{4 x}{5}-\frac{x}{5}=2499$
$\Rightarrow \frac{3 x}{5}=2499$
$\Rightarrow x=\frac{2499 \times 5}{3}=4165$
$\therefore 4165 \times \frac{2}{7}=1190$