write an equation

Question

Consecutive intergers are 1 apart .The sum of three consecutive intergers is 54.What are intergers? 

Answer 1

A useful trick for this type of problem is note that the sum of three consecutive integers is 3 times the middle one.

So the middle integer is  54/3 =  18.    The other two are 17 and 19.

 

These consecutive integer problems are appear frequently on SAT tests, so this type of trick is worth knowing.