Average of 15 numbers 1210. If average of 9 is 1205, average of remaining 6? MCQ with Answer and Explanation

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Average of 15 numbers 1210. If average of 9 is 1205, average of remaining 6?

A. 1215

B. 1220

C. 1218

D. 1217.5

Answer: Option D

Solution (By JKExamLibrary)

Sum15=18150. Sum9=10845. Remaining=7305. Average=1217.5.

This question belongs to: Maths Average

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Question #1 Report Error

Average of 8 numbers 950. If average of 5 is 945, average of remaining 3?

A. 958.33

B. 957

C. 955

D. 960

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Correct Answer: Option A

Explanation:
Sum8=7600. Sum5=4725. Remaining=2875. Average≈958.33.

This question belongs to: Maths Average

Question #2 Report Error

The average of 8 numbers is 36. If one number is 60, what is the average of the rest?

A. 31.5

B. 32

C. 32.57

D. 33

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Correct Answer: Option C

Explanation:
Sum=8×36=288. Rest sum=288-60=228. Avg=228/7=32.57.

This question belongs to: Maths Average

Question #3 Report Error

Average of 12 numbers 2620. If average of 8 is 2615, average of remaining 4?

A. 2630

B. 2628

C. 2632

D. 2625

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Correct Answer: Option A

Explanation:
Sum12=31440. Sum8=20920. Remaining=10520. Average=2630.

This question belongs to: Maths Average

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