The sum of three consecutive integers is 72. What is the greatest of the three integers?
Five fresh questions every day, your progress tracked, every miss explained. Free with an account.
QuantProblem Solving
Free GMAT Problem Solving Practice Question
PrepLattice is an independent test-preparation service and is not affiliated with or endorsed by GMAC, the organization that administers the GMAT. GMAT and GMAT Focus are trademarks of GMAC, used here only to name the exam this question is designed to prepare you for.
Answer & Explanation
Correct answer
C
Write the three consecutive integers as n, n + 1, and n + 2, so their sum is 3n + 3 = 72. Subtract 3 to get 3n = 69, then divide by 3 to get n = 23, making the greatest integer 25. So the answer is C. Faster still, the middle integer equals the average, 72 ÷ 3 = 24, so the three integers are 23, 24, and 25. Check: 23 + 24 + 25 = 72.