Question

A set of 3 consecutive integers has a sum of 30. Which integers are they?

Answer 1

You can only do it like '7.5 plus 9.5 plus 13

Answer 2

Since consecutive means they're one away from each other, the 3 integers can be written like this:

x
x + 1
x +2

So, we add all of these together to find x:
x + x + 1 + x + 2= 30
3x + 3 = 30
3x = 27
x = 9

This then means the numbers are 9, 10, and 11