GMAT Statistics & Averages Practice Question #1
A conceptually easy weighted average question.

Learning outcome from this question
1. How to calculate with ease when you to find the weighted average of large numbers without using a calculator?
2. Discussion of two properties of average of set of numbers
a. What happens to the average of a set of numbers if a constant ‘k’ is added to or subtracted from each element in the set?
b. What happens to the average of a set of numbers is a constant k is multiplied to or if a k divides each element in the set?

The average salary of a graduating class of 30 students is $8420 per month and that of another class comprising 20 students is $8438 per month. What is the average monthly salary of the students of the two classes taken together?

Sign up for the most comprehensive and affordable GMAT quant course available online @

Join Wizako’s intensive weekend and weekday classes for GMAT at Chennai. Details @

Free GMAT quant and GMAT verbal practice questions @

#OnlineGMATPrep #GMATOnlineCourse #GMATQuant #GMATCoaching #GMATPreparation #GMATStatistics #GMAT


Fill this form and get best deals on " Coaching classes"

  • 100% genuine institutes aiming to help you ace studies
  • Get immediate response from the institutes
  • Compare institutes and pick only the best!
  • Feel free to choose the institute you like, and rest will be taken care of
1 Comment

Comments are closed.

  1. Harsh Sachdev 3 years ago

    Thanks for uploading these videos. Would you also be uploading median, mode & std deviation? God bless

Verify Yourself

Log in with your credentials


Forgot your details?

Create Account