Question

The sum of 3 consecutive integers is 30.
What is the third number in this sequence?

Answer 1

11

Explanation:

the 3 numbers are 9, 10, 11

Answer 2

Third number = 11

Explanation:

Let 3 consecutive numbers be x ,x +1 , x +2

x +x+1 + x+ 2 = 30

x +x +x + 1 + 2 = 30 {Combine like terms}

3x + 3 = 30 {Subtract 3 from both sides}

3x = 30 - 3

3x = 27 {Divide both sides by 3}

x = 27/3

x = 9

Third number =x + 2 = 9 + 2 = 11