Average of 9 numbers 2690. If average of 6 is 2685, average of remaining 3? MCQ with Answer and Explanation

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Average of 9 numbers 2690. If average of 6 is 2685, average of remaining 3?

A. 2695

B. 2698

C. 2705

D. 2700

Answer: Option D

Solution (By JKExamLibrary)

Sum9=24210. Sum6=16110. Remaining=8100. Average=2700.

This question belongs to: Maths Average

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Question #1 Report Error

The average of 5 numbers is 18. If each number is multiplied by 3, what is the new average?

A. 60

B. 45

C. 36

D. 54

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Correct Answer: Option D

Explanation:
New average =18×3=54.

This question belongs to: Maths Average

Question #2 Report Error

Average of 7 numbers 110. If average of 4 is 105, average of remaining 3?

A. 115

B. 117.67

C. 118

D. 120

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Correct Answer: Option B

Explanation:
Sum7=770. Sum4=420. Remaining=350. Average≈116.67 approx 117.

This question belongs to: Maths Average

Question #3 Report Error

The average of 5 numbers is 26. If one number is 30, find the average of the rest.

A. 24.5

B. 26

C. 25

D. 25.5

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Correct Answer: Option C

Explanation:
Sum=5×26=130. Rest sum=130-30=100. Avg=100/4=25.

This question belongs to: Maths Average

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