Average of 12 numbers 2070. If average of 8 is 2065, average of remaining 4? MCQ with Answer and Explanation

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Average of 12 numbers 2070. If average of 8 is 2065, average of remaining 4?

A. 2075

B. 2078

C. 2082

D. 2080

Answer: Option D

Solution (By JKSSB Mock Tests)

Sum12=24840. Sum8=16520. Remaining=8320. Average=2080.

This question belongs to: Maths Average

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Question #1

Average of 15 numbers 310. If average of 9 is 305, average of remaining 6?

A. 318

B. 317.5

C. 315

D. 320

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Correct Answer: Option B

Explanation:
Sum15=4650. Sum9=2745. Remaining=1905. Average=317.5.

This question belongs to: Maths Average

Question #2

Average of 12 numbers 620. If average of 8 is 615, average of remaining 4?

A. 625

B. 632

C. 628

D. 630

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Correct Answer: Option D

Explanation:
Sum12=7440. Sum8=4920. Remaining=2520. Average=630.

This question belongs to: Maths Average

Question #3

The average of 5 numbers is 40. If one number is 60, find the average of the remaining 4.

A. 33.75

B. 35

C. 36

D. 34

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Correct Answer: Option B

Explanation:
Sum=5×40=200. Remaining sum=200-60=140. Avg=140/4=35.

This question belongs to: Maths Average

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