What three consecutive integers have a sum of 121?

Here we will use algebra to find three consecutive integers whose sum is 121. We start by assigning X to the first integer. Since they are consecutive, it means that the 2nd number will be X + 1 and the 3rd number will be X + 2 and they should all add up to 121. Therefore, you can write the equation as follows:

(X) + (X + 1) + (X + 2) = 121

To solve for X, you first add the integers together and the X variables together. Then you subtract three from each side, followed by dividing by 3 on each side. Here is the work to show our math:

X + X + 1 + X + 2 = 121
3X + 3 = 121

3X + 3 - 3 = 121 - 3
3X = 118

3X/3 = 118/3
X = 39 1/3

Since 39 1/3 is not an integer, there is no true answer to this problem.

However, there are three numbers that add up to 121. The first number is (39 1/3), the second number is (39 1/3) + 1, and the third number is (39 1/3) + 2. Therefore, we could make this the answer to "Three consecutive numbers that add up to 121 are?":

39 1/3 + 40 1/3 + 41 1/3 = 121

Three Consecutive Integers
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What three consecutive integers have a sum of 122?
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