Average of 10 numbers 1980. If average of 6 is 1975, average of remaining 4? MCQ with Answer and Explanation

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Average of 10 numbers 1980. If average of 6 is 1975, average of remaining 4?

A. 1985

B. 1990

C. 1986

D. 1987.5

Answer: Option D

Solution (By JKSSB Mock Tests)

Sum10=19800. Sum6=11850. Remaining=7950. Average=1987.5.

This question belongs to: Maths Average

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Question #1

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

A. 2790

B. 2787.5

C. 2785

D. 2786

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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 #2

Average of 12,24,36,48,60 is

A. 42

B. 36

C. 40

D. 30

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Correct Answer: Option B

Explanation:
Sum=180. Average=36.

This question belongs to: Maths Average

Question #3

Average of 8 numbers 450. If average of 5 is 445, average of remaining 3?

A. 458.33

B. 457

C. 460

D. 455

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Correct Answer: Option A

Explanation:
Sum8=3600. Sum5=2225. Remaining=1375. Average≈458.33.

This question belongs to: Maths Average

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