Question

When 40% of a number is subtracted from 105 ,the results is the number itself. the number is?

Answer 1

Let the number be x.

40℅ of x = x * 40/100
➡ 2x/5

A/q,

When 40℅ of a number is subtracted from 105, the result is the number itself.

➡ x = 105 - 2x/5

➡ x + (2x/5) = 105

➡ 7x/5 = 105

➡ 7x = 105 * 5

➡ x = (105 * 5)/7

➡ x = 75

So, required number is 75.

Hope it will help you !!!