Average of 8 numbers 2400. If average of 5 is 2395, average of remaining 3? MCQ with Answer and Explanation

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Average of 8 numbers 2400. If average of 5 is 2395, average of remaining 3?

A. 2408.33

B. 2410

C. 2407

D. 2405

Answer: Option A

Solution (By JKSSB Mock Tests)

Sum8=19200. Sum5=11975. Remaining=7225. Average≈2408.33.

This question belongs to: Maths Average

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Question #1

The average of 7 numbers is 32. If each number is increased by 4, what is the new average?

A. 36

B. 40

C. 28

D. 32

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Correct Answer: Option A

Explanation:
New average =32+4=36.

This question belongs to: Maths Average

Question #2

The average of first 15 multiples of 3 is

A. 25

B. 24

C. 27

D. 22.5

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Correct Answer: Option B

Explanation:
3*(1+15)/2 =3*8=24.

This question belongs to: Maths Average

Question #3

The average of 8 numbers is 27. If each number is decreased by 4, what is the new average?

A. 23

B. 27

C. 19

D. 31

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Correct Answer: Option A

Explanation:
New average =27-4=23.

This question belongs to: Maths Average

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