Average of 50 numbers 45. If 10 numbers average 55 removed, new average of 40? MCQ with Answer and Explanation

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Average of 50 numbers 45. If 10 numbers average 55 removed, new average of 40?

A. 42.5

B. 43

C. 41

D. 40

Answer: Option A

Solution (By JKExamLibrary)

Total=2250. Removed=550. Remaining=1700/40=42.5.

This question belongs to: Maths Average

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Question #1

Average of 8 numbers 550. If average of 5 is 545, average of remaining 3?

A. 555

B. 558.33

C. 557

D. 560

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Correct Answer: Option B

Explanation:
Sum8=4400. Sum5=2725. Remaining=1675. Average≈558.33.

This question belongs to: Maths Average

Question #2

The average of all even numbers from 2 to 40 is

A. 22

B. 21

C. 19

D. 20

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Correct Answer: Option B

Explanation:
(2+40)/2=21.

This question belongs to: Maths Average

Question #3

The average of 330,440,550 is

A. 440

B. 450

C. 435

D. 430

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Correct Answer: Option A

Explanation:
1320/3=440.

This question belongs to: Maths Average

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