Average of 9 numbers 1390. If average of 6 is 1385, average of remaining 3? MCQ with Answer and Explanation

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Average of 9 numbers 1390. If average of 6 is 1385, average of remaining 3?

A. 1400

B. 1398

C. 1395

D. 1405

Answer: Option A

Solution (By JKExamLibrary)

Sum9=12510. Sum6=8310. Remaining=4200. Average=1400.

This question belongs to: Maths Average

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Question #1 Report Error

Find average of numbers from 1 to 100.

A. 50.5

B. 51

C. 50

D. 49.5

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Correct Answer: Option A

Explanation:
(1+100)/2 = 50.5.

This question belongs to: Maths Average

Question #2 Report Error

The average of 4 numbers is 12. If each number is multiplied by 2 and then 5 is added, what is the new average?

A. 30

B. 24

C. 29

D. 27

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Correct Answer: Option C

Explanation:
New average = (12×2)+5 =24+5=29.

This question belongs to: Maths Average

Question #3 Report Error

Average of 8 numbers 1500. If average of 5 is 1495, average of remaining 3?

A. 1505

B. 1507

C. 1508.33

D. 1510

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Correct Answer: Option C

Explanation:
Sum8=12000. Sum5=7475. Remaining=4525. Average≈1508.33.

This question belongs to: Maths Average

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