Question

What number increased by 20 percent equals 78?

Answer 1

93.6

78*0.20=15.6
78+15.6=93.6

Answer 2

65.

Explanation:

Let x represent our required number.

We are asked to find the number which is equal to 78 when increased by 20 percent.

After increasing by 20%, our number would be
`x+(20)/(100)x=x+0.20x=1.20x`.

To solve for x, we will set an equation as:

`1.20x=78`

`(1.20x)/(1.20)=(78)/(1.20)`

`x=65`

Therefore, our required number is 65.