Average of 15 numbers 28. If one number 40 is replaced by 25, new average? MCQ with Answer and Explanation

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Average of 15 numbers 28. If one number 40 is replaced by 25, new average?

A. 26.67

B. 27.5

C. 28

D. 27

Answer: Option D

Solution (By JKSSB Mock Tests)

Change -15, decrease 1. New=27.

This question belongs to: Maths Average

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Question #1

Average of 30 numbers 20. If each decreased by 4, new average?

A. 20

B. 18

C. 24

D. 16

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Correct Answer: Option D

Explanation:
16.

This question belongs to: Maths Average

Question #2

Average of 1365,1820,2275 is

A. 1815

B. 1830

C. 1810

D. 1820

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Correct Answer: Option D

Explanation:
5460/3=1820.

This question belongs to: Maths Average

Question #3

The average of 720,960,1200 is

A. 955

B. 960

C. 970

D. 950

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Correct Answer: Option B

Explanation:
2880/3=960.

This question belongs to: Maths Average

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