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. 2410

B. 2407

C. 2405

D. 2408.33

Answer: Option D

Solution (By JKExamLibrary)

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

This question belongs to: Maths Average

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Question #1 Report Error

Average of 9 numbers is 50. If 60 is replaced by 40, new average?

A. 49

B. 50

C. 48

D. 47

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Correct Answer: Option C

Explanation:
Change -20, decrease 20/9≈2.22, 50-2.22≈47.78 approx 48.

This question belongs to: Maths Average

Question #2 Report Error

The average of 4 numbers is 28. If one number is 32, find the average of the remaining 3.

A. 28

B. 26

C. 27

D. 26.67

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Correct Answer: Option D

Explanation:
Sum=4×28=112. Remaining sum=112-32=80. Avg=80/3=26.67.

This question belongs to: Maths Average

Question #3 Report Error

Average of 5 consecutive even numbers is 26. What is the smallest number?

A. 20

B. 18

C. 22

D. 24

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Correct Answer: Option C

Explanation:
Let numbers be x, x+2, x+4, x+6, x+8. Average = x + 4 = 26. x = 22.

This question belongs to: Maths Average

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