Question

If the sum of four consecutive numbers is 854, what is the last one?

Answer 1

The last one is 215

Explanation:

Let

x ----> the first consecutive number

x+1 ---> the second consecutive number

x+2 ---> the third consecutive number

x+3 ----> the fourth consecutive number

we have that

`x+(x+1)+(x+2)+(x+3)=854`

solve for x

Combine like terms

`4x+6=854`

Subtract 6 both sides

`4x+6-6=854-6`

`4x=848`

Divide by 4 both sides

`x=212`

Find the last one

`x+3=212+3=215`

therefore

The last one is 215