Question

The sum of three consecutive integers is 267. What are the three integers?

Answer 1

Let first number be

n+(n+1)+(n+2)=267 Solve for n.

Answer 2

267/3 = 89. So we know that the numbers average to 89.

88, 89, and 90 are the only three consecutive numbers that average to 89 and sum to 267.