EASE INTO PREP WITH GMAT® QUESTION A DAY

Build prep into your routine until it's second nature.
Get a GMAT question—with detailed answer explanations—in your inbox every day.

GMAT Practice Question for February 27th

Manufacturers of motor oil for car engines have found through research that motor oil slowly loses lubrication effectiveness after the car is driven for certain distances. On average, the motor oil is only 50 percent as effective after 3,000 miles of driving as it is the first day it is put into the car. For that reason, people should replace their motor oil every 3,000 miles.

Which of the following, if true, would most weaken the conclusion above?

READY FOR A HIGHER SCORE ON THE GMAT?

No matter where you are on your journey, Kaplan's expert teachers can help you raise your score.
Find the course that fits you best.

Find Your Prep
Kaplan | 750 Third Ave | New York, NY 10017
© Kaplan Inc. All Rights Reserved.
Privacy Policy Terms and Conditions

Question ID: 140