Average of 12 numbers 1770. If average of 8 is 1765, average of remaining 4? MCQ with Answer and Explanation

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Average of 12 numbers 1770. If average of 8 is 1765, average of remaining 4?

A. 1775

B. 1780

C. 1782

D. 1778

Answer: Option B

Solution (By JKExamLibrary)

Sum12=21240. Sum8=14120. Remaining=7120. Average=1780.

This question belongs to: Maths Average

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Question #1 Report Error

Average of 9 numbers 1590. If average of 6 is 1585, average of remaining 3?

A. 1595

B. 1598

C. 1605

D. 1600

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Correct Answer: Option D

Explanation:
Sum9=14310. Sum6=9510. Remaining=4800. Average=1600.

This question belongs to: Maths Average

Question #2 Report Error

Average of 9 numbers 940. If average of 6 is 935, average of remaining 3?

A. 950

B. 948

C. 955

D. 945

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Correct Answer: Option A

Explanation:
Sum9=8460. Sum6=5610. Remaining=2850. Average=950.

This question belongs to: Maths Average

Question #3 Report Error

The average of 11 numbers is 55. What is the sum of the numbers?

A. 550

B. 615

C. 600

D. 605

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Correct Answer: Option D

Explanation:
Sum = Average × Number =55×11=605.

This question belongs to: Maths Average

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