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 $x$.

$\therefore \frac{4 x}{5}-\frac{x}{5}=2499$

$\Rightarrow \frac{3 x}{5}=2499$

$\Rightarrow x=\frac{2499 \times 5}{3}=4165$

$\therefore 4165 \times \frac{2}{7}=1190$