Average of 50 and 60 is 55, average of 60 and 70 is 65, average of 50,60,70 is MCQ with Answer and Explanation

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Average of 50 and 60 is 55, average of 60 and 70 is 65, average of 50,60,70 is

A. 58.33

B. 60

C. 59

D. 61

Answer: Option B

Solution (By JKSSB Mock Tests)

Sum=180. Average=60.

This question belongs to: Maths Average

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Question #1

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The average of 1230,1640,2050 is

A. 1650

B. 1640

C. 1635

D. 1630

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Correct Answer: Option B

Explanation:
4920/3=1640.

This question belongs to: Maths Average

Question #2

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Average of 10 numbers 2780. If average of 6 is 2775, average of remaining 4?

A. 2785

B. 2787.5

C. 2786

D. 2790

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Correct Answer: Option B

Explanation:
Sum10=27800. Sum6=16650. Remaining=11150. Average=2787.5.

This question belongs to: Maths Average

Question #3

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Average of 12 numbers 2470. If average of 8 is 2465, average of remaining 4?

A. 2482

B. 2475

C. 2480

D. 2478

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Correct Answer: Option C

Explanation:
Sum12=29640. Sum8=19720. Remaining=9920. Average=2480.

This question belongs to: Maths Average

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