Average of 20 numbers 35. If 5 numbers average 40 included, new average of 25? MCQ with Answer and Explanation

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Average of 20 numbers 35. If 5 numbers average 40 included, new average of 25?

A. 35.8

B. 36

C. 34

D. 37

Answer: Option B

Solution (By JKSSB Mock Tests)

Total20=700. Added=200. Total900/25=36.

This question belongs to: Maths Average

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Question #1

Average of 8 numbers 2650. If average of 5 is 2645, average of remaining 3?

A. 2655

B. 2658.33

C. 2660

D. 2657

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Correct Answer: Option B

Explanation:
Sum8=21200. Sum5=13225. Remaining=7975. Average≈2658.33.

This question belongs to: Maths Average

Question #2

The average of 5 numbers is 44. If each number is decreased by 6, what is the new average?

A. 44

B. 38

C. 50

D. 32

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Correct Answer: Option B

Explanation:
New average =44-6=38.

This question belongs to: Maths Average

Question #3

The average of first 6 multiples of 7 is

A. 25

B. 28

C. 21

D. 24.5

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Correct Answer: Option D

Explanation:
7*(1+6)/2=7*3.5=24.5.

This question belongs to: Maths Average

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