Intensive classes for GMAT in Madras, Bombay and Bangalore in India. Weekend & Weekday classes. Includes study material and tests. Tutors include 98%ilers in GMAT & ISB / IIM Graduates.

You are here: Home » GMAT Test Prep Questions » Mean, Median, Deviation » Question 5

The question for the day is a Math question from the topic Arithmetic Mean.

Question 5

The average of 5 quantities is 6. The average of 3 of them is 8. What is the average of the remaining two numbers?

1. 4
2. 5
3. 3
4. 3.5
5. 0.5

The correct choice is (C) and the correct answer is 3

Explanatory Answer

The average of 5 quantities is 6.

Therefore, the sum of the 5 quantities is 5 * 6 = 30.

The average of three of these 5 quantities is 8.

Therefore, the sum of these three quantities = 3 * 8 = 24

The sum of the remaining two quantities = 30 - 24 = 6.

Average of these two quantities = = 3.

eBook on Descriptive Statistics  

This ebook with about 110 questions in over 200 pages covers all major concepts in Descriptive Statistics (Mean, Median, Range, and Deviation). Includes typical GMAT type questions in both Problem Solving and Data Sufficiency formats.

These concepts are explained with 35 solved examples and illustrative examples. In addition, the eBook also includes 40+ exercise problems in problem solving and over 25 exercise questions in Data Sufficiency.