Average of 50 numbers 40. If two numbers 30 and 50 are replaced by 40 and 60, new average? MCQ with Answer and Explanation

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Average of 50 numbers 40. If two numbers 30 and 50 are replaced by 40 and 60, new average?

A. 40.4

B. 39

C. 41

D. 40

Answer: Option A

Solution (By JKSSB Mock Tests)

Net change +20, increase 20/50=0.4, new 40.4.

This question belongs to: Maths Average

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Practice More Average Questions

Question #1

The average of 40,50,60,70 is

A. 60

B. 50

C. 58

D. 55

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Correct Answer: Option D

Explanation:
220/4=55.

This question belongs to: Maths Average

Question #2

The average of 12,24,36,48 is

A. 28

B. 25

C. 32

D. 30

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Correct Answer: Option D

Explanation:
120/4=30.

This question belongs to: Maths Average

Question #3

The average of 1530,2040,2550 is

A. 2035

B. 2040

C. 2050

D. 2030

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Correct Answer: Option B

Explanation:
6120/3=2040.

This question belongs to: Maths Average

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