Question

The sum of 3 consecutive integers is 78. What is the integer closest to zero?

Answer 1

Therefore the first integer is 25
So our sequence is 25, 26 and 27 respectively
The integer closest to zero will thus be 25.

Answer 2

25

Explanation:

Let n be the first integer.

Then the second integer will be (n + 1).

And the third will be (n + 2).

The sum is 78. Therefore:

`n+(n+1)+(n+2)+78`

Solve for n. Combine like terms:

`3n+3=78`

So:

`3n=75`

Therefore:

`n=25`

Therefore, the first integer is 25.

So our sequene is 25, 26, and 27.

The integer closest to zero will thus be 25.