The average of 21 data is 36 out of whic

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Target Exam

CUET

Subject

General Test

Chapter

Numerical Ability

Topic

Average

Question:

The average of 21 data is 36 out of which the first 12 data are having an average of 15. The average of the rest 9 data is:

Options:

Correct Answer:

Explanation:

Let average of rest 9 data = A

ATQ ,

12 × 15 + 9 × A = 21 ×36

180 + 9A = 756

9A = 576

A = 64

So , Average of rest 9 data = 64