Average of 8 numbers 350. If average of 5 is 345, average of remaining 3? MCQ with Answer and Explanation

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Average of 8 numbers 350. If average of 5 is 345, average of remaining 3?

A. 358.33

B. 355

C. 357

D. 360

Answer: Option A

Solution (By JKExamLibrary)

Sum8=2800. Sum5=1725. Remaining=1075. Average≈358.33.

This question belongs to: Maths Average

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Question #1 Report Error

Average of 10 numbers 30. If two numbers 20 and 40 replaced by 25 and 35, new average?

A. 30

B. 29

C. 31

D. 28

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Correct Answer: Option A

Explanation:
Net change 0. Average remains 30.

This question belongs to: Maths Average

Question #2 Report Error

The average of 10 numbers is 35. If each number is increased by 5, what will be the new average?

A. 38

B. 42

C. 40

D. 35

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Correct Answer: Option C

Explanation:
When each number increases by 5, the average also increases by 5. New average = 35+5 = 40.

This question belongs to: Maths Average

Question #3 Report Error

Average of 15 numbers 32. If average of 9 is 30, average of remaining 6?

A. 36

B. 33

C. 35

D. 34

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Correct Answer: Option C

Explanation:
Sum15=480. Sum9=270. Remaining=210. Average=35.

This question belongs to: Maths Average

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