Average of 14 numbers 40. If average of 8 is 36, average of remaining 6? MCQ with Answer and Explanation

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Average of 14 numbers 40. If average of 8 is 36, average of remaining 6?

A. 44

B. 46

C. 48

D. 45

Answer: Option B

Solution (By JKExamLibrary)

Sum14=560. Sum8=288. Remaining=272. Average≈45.33 approx 46.

This question belongs to: Maths Average

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Question #1

Average of 9 numbers is 28. If average of first 5 is 25, average of last 5 is 31, 5th number?

A. 26

B. 27

C. 28

D. 29

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Correct Answer: Option C

Explanation:
Sum9=252. Sum1-5=125. Sum5-9=155. 5th=125+155-252=28.

This question belongs to: Maths Average

Question #2

The average of 1140,1520,1900 is

A. 1515

B. 1520

C. 1530

D. 1510

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Correct Answer: Option B

Explanation:
4560/3=1520.

This question belongs to: Maths Average

Question #3

Find the average of all even numbers between 1 and 20 (inclusive of 20).

A. 10.5

B. 10

C. 12

D. 11

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Correct Answer: Option D

Explanation:
Even numbers: 2,4,...,20. Sum = 2+4+...+20 = 2×(1+2+...+10)=2×55=110. Count=10. Average=110/10=11.

This question belongs to: Maths Average

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