Average of first 5 prime numbers is MCQ with Answer and Explanation

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Average of first 5 prime numbers is

A. 6

B. 5

C. 5.6

D. 7

Answer: Option C

Solution (By JKSSB Mock Tests)

2+3+5+7+11=28. 28/5=5.6.

This question belongs to: Maths Average

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Question #1

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Average of 585,780,975 is

A. 780

B. 775

C. 790

D. 770

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Correct Answer: Option A

Explanation:
2340/3=780.

This question belongs to: Maths Average

Question #2

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The average of 8 numbers is 44. If one number is 56, find the average of the remaining 7.

A. 42.29

B. 41.5

C. 43

D. 42

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Correct Answer: Option A

Explanation:
Sum=8×44=352. Remaining sum=352-56=296. Avg=296/7=42.29.

This question belongs to: Maths Average

Question #3

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Average of 1 to 50 except multiples of 10 is

A. 24.5

B. 25.5

C. 26

D. 25

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Correct Answer: Option B

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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