The average of 8 numbers is 20. If each number is multiplied by 2, what is the new average?

Topic: Averages
Subtopic: Properties of Averages

A20

B30

C40

D50

Explanation

When every observation in a dataset is multiplied by a constant k, the mean is also multiplied by k. New average = 20 * 2 = 40.

Exam Relevance

Submitted by: mcqstutor Team More Mathematics MCQs →