Average of 8 numbers 900. If average of 5 is 895, average of remaining 3? MCQ with Answer and Explanation

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Average of 8 numbers 900. If average of 5 is 895, average of remaining 3?

A. 908.33

B. 905

C. 910

D. 907

Answer: Option A

Solution (By JKSSB Mock Tests)

Sum8=7200. Sum5=4475. Remaining=2725. Average≈908.33.

This question belongs to: Maths Average

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Question #1

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The average weight of 20 boys is 60 kg. If one boy weighing 80 kg leaves, what is the average weight of the remaining boys?

A. 60 kg

B. 58.95 kg

C. 59 kg

D. 61 kg

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Correct Answer: Option B

Explanation:
Total weight = 20×60 = 1200 kg. Remaining weight = 1200−80 = 1120 kg. Average = 1120/19 = 58.95 kg.

This question belongs to: Maths Average

Question #2

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The average of 6 numbers is 15. If each number is increased by 7, what is the new average?

A. 15

B. 22

C. 29

D. 8

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Correct Answer: Option B

Explanation:
New average =15+7=22.

This question belongs to: Maths Average

Question #3

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The average of 3 numbers is 15. If each number is multiplied by 4, what is the new average?

A. 30

B. 60

C. 45

D. 75

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Correct Answer: Option B

Explanation:
New average =15×4=60.

This question belongs to: Maths Average

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