The difference between 20% of a number and 4/5 th of the same number is 2499. What is 2/7 th of that number ?
Let number be 'n'.
It is given,
4/5th of n-20% of n=2499.
$$\frac{4}{5}n-\frac{1}{5}n=2499$$.
$$\frac{3}{5}n=2499$$.
$$n=4165$$.
2/7th of n=$$\frac{2}{7}4165$$.
=1190.
Hence, Option B is correct.
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