Average of 8 numbers 300. If average of 5 is 295, average of remaining 3? MCQ with Answer and Explanation

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Average of 8 numbers 300. If average of 5 is 295, average of remaining 3?

A. 308.33

B. 305

C. 307

D. 310

Answer: Option A

Solution (By JKExamLibrary)

Sum8=2400. Sum5=1475. Remaining=925. Average≈308.33.

This question belongs to: Maths Average

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Question #1

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The average of 9 numbers is 27. If one number is wrongly taken as 45 instead of 27, the incorrect average is:

A. 30

B. 28

C. 29

D. 31

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Correct Answer: Option C

Explanation:
Correct total = 9×27 = 243. Incorrect total = 243+18 = 261. Incorrect average = 261/9 = 29.

This question belongs to: Maths Average

Question #2

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The average height of 4 boys is 1.5 m. If a girl of height 1.6 m joins, what is the new average?

A. 1.55 m

B. 1.5 m

C. 1.53 m

D. 1.52 m

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Correct Answer: Option D

Explanation:
Sum of 4 =4×1.5=6.0. Sum of 5=6.0+1.6=7.6. Average=7.6/5=1.52.

This question belongs to: Maths Average

Question #3

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If average of 6 numbers is 30 and average of 3 is 25, average of remaining 3?

A. 35

B. 36

C. 32

D. 30

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Correct Answer: Option A

Explanation:
Sum6=180. Sum3=75. Remaining=105. Average=35.

This question belongs to: Maths Average

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