The average of 6 numbers is 25. If 5 is subtracted from each, new average? MCQ with Answer and Explanation

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The average of 6 numbers is 25. If 5 is subtracted from each, new average?

A. 22

B. 30

C. 20

D. 25

Answer: Option C

Solution (By JKExamLibrary)

New average =25 -5 =20.

This question belongs to: Maths Average

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Question #1 Report Error

Average of 9 numbers 2540. If average of 6 is 2535, average of remaining 3?

A. 2545

B. 2555

C. 2548

D. 2550

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Correct Answer: Option D

Explanation:
Sum9=22860. Sum6=15210. Remaining=7650. Average=2550.

This question belongs to: Maths Average

Question #2 Report Error

The average of 24,36,48,60 is

A. 40

B. 45

C. 39

D. 42

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Correct Answer: Option D

Explanation:
168/4=42.

This question belongs to: Maths Average

Question #3 Report Error

What is the average of all even numbers from 2 to 30?

A. 15.5

B. 16

C. 15

D. 16.5

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Correct Answer: Option B

Explanation:
Even numbers: 2 to 30 inclusive. Number of terms = (30-2)/2+1=15. Sum = n/2*(first+last) =15/2*(2+30)=15/2*32=240. Average=240/15=16.

This question belongs to: Maths Average

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