Question

If 80% of a number added to 80 gives the result as the number itself, then the number is :

Answer 1

Let the number be x.

ATGQ -

80% of x + 80 = x

=> 80/100 X x + 80 = x
80x/100 + 80 = x
80x + 8000 / 100 = x
80x + 8000 = 100 x. (Cross multiplication)
8000 = 100x - 80x
8000 = 20x
x = 8000/20
= 400


So, the number is 400..

mark it as Brainliest please please

Answer 2

Let the no be x.Then,

80% of the number is 80/100x

therefore,x=80/100x + 80

x-80/100x = 80

20/100 x =80

1/5 x= 80

x=80 * 5

x= 400

Hence , the number is 400

....................................................................................................................................................

please mark it as the brainliest answer.