Average of 8 numbers 55. If average of 5 is 50, average of remaining 3? MCQ with Answer and Explanation

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Average of 8 numbers 55. If average of 5 is 50, average of remaining 3?

A. 62

B. 60

C. 65

D. 63.33

Answer: Option D

Solution (By JKExamLibrary)

Sum8=440. Sum5=250. Remaining=190. Average≈63.33.

This question belongs to: Maths Average

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Question #1

Average of 12 numbers 1820. If average of 8 is 1815, average of remaining 4?

A. 1828

B. 1832

C. 1825

D. 1830

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Correct Answer: Option D

Explanation:
Sum12=21840. Sum8=14520. Remaining=7320. Average=1830.

This question belongs to: Maths Average

Question #2

What is the average of all numbers from 1 to 50 that are divisible by 7?

A. 29

B. 28.5

C. 27.5

D. 28

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Correct Answer: Option D

Explanation:
Numbers: 7,14,21,28,35,42,49. Sum=196, count=7, avg=28.

This question belongs to: Maths Average

Question #3

Average of 1 to 50 except multiples of 10 is

A. 25

B. 26

C. 24.5

D. 25.5

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Correct Answer: Option D

Explanation:
Sum1-50=1275. Multiples10 sum=10+20+...+50=300. Remaining sum=975. Numbers45. Average=21.67? Adjust.

This question belongs to: Maths Average

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