Average of 25 numbers 55. If 5 numbers average 65 removed, new average of 20? MCQ with Answer and Explanation

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Average of 25 numbers 55. If 5 numbers average 65 removed, new average of 20?

A. 50

B. 51

C. 52.5

D. 53

Answer: Option C

Solution (By JKSSB Mock Tests)

Total=1375. Removed=325. Remaining=1050/20=52.5.

This question belongs to: Maths Average

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Question #1

The average of 1470,1960,2450 is

A. 1960

B. 1970

C. 1955

D. 1950

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Correct Answer: Option A

Explanation:
5880/3=1960.

This question belongs to: Maths Average

Question #2

The average of first 15 multiples of 4 is

A. 28

B. 30

C. 32

D. 34

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Correct Answer: Option C

Explanation:
4*(1+15)/2=32.

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Question #3

The average of 12,24,36,48 is

A. 28

B. 30

C. 25

D. 32

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Correct Answer: Option B

Explanation:
120/4=30.

This question belongs to: Maths Average

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