The difference between a number and its two-fifth is What is 10 percent of that number?

A 85

B 12.75

C 204

D None of these

Solution

Correct Answer: Option A

let, the number is x Then, x-2/5x=510 3x/5=510 x=510 X 5/3=850 10 % 0f 850 = 85.