One fifth of a number is subtracted from four fifth of the same number the result is 9, what is the number

Answer 1

Let the number be x.

According to the given conditions, we can write the equation as:

(4/5)x - (1/5)x = 9
(3/5)x = 9
x = 9 * (5/3)
x = 15

Therefore, the number is 15.