The average of the marks of 12 students in a class is 36. If the marks of each student are doubled, find the new average?

Arithmetic Mcqs Average Mcqs Basic Maths Mcqs 05/10/2020

A. 72
B. 45
C. 37
D. 79

Explanation:

Sum of the marks for the 12 students = 12 * 36 = 432. The marks of each student are doubled, the sum also will be doubled.
The new sum = 432 * 2 = 864. So, the new average = 864/12 = 72

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