2015 UNCO Math Contest II Problems/Problem 1

Problem

The sum of three consecutive integers is $54$. What is the smallest of the three integers?


Solution

Call the smallest integer $x$. We can express the sum as $(x) + (x + 1) + (x + 2)$. Solving, we get $(x) + (x + 1) + (x + 2) = 54 \implies 3x + 3 = 54 \implies 3x = 51 \implies x = \boxed{17}$.

See also

2015 UNCO Math Contest II (ProblemsAnswer KeyResources)
Preceded by
First Question
Followed by
Problem 2
1 2 3 4 5 6 7 8 9 10
All UNCO Math Contest Problems and Solutions