Average of 25 consecutive odd numbers is 51. What is the smallest? MCQ with Answer and Explanation

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Average of 25 consecutive odd numbers is 51. What is the smallest?

A. 25

B. 27

C. 31

D. 29

Answer: Option B

Solution (By JKExamLibrary)

Middle 13th=51. Smallest=51-12=39? For odd. Adjust.

This question belongs to: Maths Average

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The average of 750,1000,1250 is

A. 990

B. 1010

C. 1000

D. 995

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Correct Answer: Option C

Explanation:
3000/3=1000.

This question belongs to: Maths Average

Question #2 Report Error

Average of 25 numbers 70. If average of 15 is 75, average of remaining 10?

A. 62.5

B. 60

C. 63

D. 65

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Correct Answer: Option A

Explanation:
Total=1750. Sum15=1125. Remaining=625/10=62.5.

This question belongs to: Maths Average

Question #3 Report Error

A group of 5 friends average age 25. If one leaves, average becomes 24. Age of person who left?

A. 31

B. 29

C. 28

D. 30

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Correct Answer: Option B

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Sum5=125. Sum4=96. Left=29.

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