Question

If the average of 3 numbers and 8 is 25 what is the sum of the three numbers

Answer 1

Let sum of 3 numbers be x.

Average of 3 numbers and 8 = $\frac{x + 8}{4}$

25 = $\frac{x +8}{4}$

100 = x +8

x= 92.

The sum of 3 numbers is 92.