Average of 15 numbers 1060. If average of 9 is 1055, average of remaining 6? MCQ with Answer and Explanation

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Average of 15 numbers 1060. If average of 9 is 1055, average of remaining 6?

A. 1070

B. 1067.5

C. 1065

D. 1068

Answer: Option B

Solution (By JKSSB Mock Tests)

Sum15=15900. Sum9=9495. Remaining=6405. Average=1067.5.

This question belongs to: Maths Average

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Question #1

Average of 30 numbers 25. If each number is increased by 10%, new average?

A. 27.5

B. 30

C. 25

D. 26

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Correct Answer: Option A

Explanation:
Increased by 10%, average 27.5.

This question belongs to: Maths Average

Question #2

The average of 10 numbers is 25. If one number is removed, the average becomes 23. What is the removed number?

A. 43

B. 38

C. 40

D. 45

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Correct Answer: Option A

Explanation:
Sum of 10 =250. Sum of 9 =9×23=207. Removed number =250-207=43.

This question belongs to: Maths Average

Question #3

Average of 25 consecutive numbers is 50. What is the smallest?

A. 40

B. 39

C. 38

D. 37

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Correct Answer: Option C

Explanation:
Middle 13th =50. Smallest=50 -12=38.

This question belongs to: Maths Average

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