Average of 12 numbers 1370. If average of 8 is 1365, average of remaining 4? MCQ with Answer and Explanation

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Average of 12 numbers 1370. If average of 8 is 1365, average of remaining 4?

A. 1375

B. 1378

C. 1382

D. 1380

Answer: Option D

Solution (By JKExamLibrary)

Sum12=16440. Sum8=10920. Remaining=5520. Average=1380.

This question belongs to: Maths Average

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Question #1 Report Error

Average of 9 numbers 1340. If average of 6 is 1335, average of remaining 3?

A. 1345

B. 1348

C. 1355

D. 1350

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Correct Answer: Option D

Explanation:
Sum9=12060. Sum6=8010. Remaining=4050. Average=1350.

This question belongs to: Maths Average

Question #2 Report Error

Average of 10 numbers 2730. If average of 6 is 2725, average of remaining 4?

A. 2740

B. 2735

C. 2737.5

D. 2736

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Correct Answer: Option C

Explanation:
Sum10=27300. Sum6=16350. Remaining=10950. Average=2737.5.

This question belongs to: Maths Average

Question #3 Report Error

Find the average of all numbers from 1 to 40 that are divisible by 8.

A. 22.5

B. 23

C. 25

D. 24

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Correct Answer: Option D

Explanation:
Numbers:8,16,24,32,40 sum=120, count=5, avg=24.

This question belongs to: Maths Average

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