If the average of 6 numbers is 18 and average of 4 is 20, average of remaining 2 is MCQ with Answer and Explanation

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If the average of 6 numbers is 18 and average of 4 is 20, average of remaining 2 is

A. 16

B. 12

C. 15

D. 14

Answer: Option D

Solution (By JKSSB Mock Tests)

Sum6=108. Sum4=80. Remaining sum=28. Average=14.

This question belongs to: Maths Average

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Question #1

Average of 495,660,825 is

A. 650

B. 660

C. 655

D. 670

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Correct Answer: Option B

Explanation:
1980/3=660.

This question belongs to: Maths Average

Question #2

Average of 10 numbers 380. If average of 6 is 375, average of remaining 4?

A. 386

B. 387.5

C. 390

D. 385

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Correct Answer: Option B

Explanation:
Sum10=3800. Sum6=2250. Remaining=1550. Average=387.5.

This question belongs to: Maths Average

Question #3

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

A. 550

B. 615

C. 605

D. 600

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Correct Answer: Option C

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

This question belongs to: Maths Average

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