Average of 10 numbers 55. If average of 6 is 50, average of remaining 4? MCQ with Answer and Explanation

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Average of 10 numbers 55. If average of 6 is 50, average of remaining 4?

A. 62.5

B. 65

C. 60

D. 63

Answer: Option A

Solution (By JKExamLibrary)

Sum10=550. Sum6=300. Remaining=250. Average=62.5.

This question belongs to: Maths Average

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Practice More Average Questions

Question #1 Report Error

Average of 8 numbers 1650. If average of 5 is 1645, average of remaining 3?

A. 1657

B. 1655

C. 1658.33

D. 1660

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Correct Answer: Option C

Explanation:
Sum8=13200. Sum5=8225. Remaining=4975. Average≈1658.33.

This question belongs to: Maths Average

Question #2 Report Error

Average of 1^3 +2^3 +...+5^3 is

A. 45

B. 55

C. 50

D. 225

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Correct Answer: Option A

Explanation:
Sum cubes =(5*6/2)^2=225. Average=225/5=45.

This question belongs to: Maths Average

Question #3 Report Error

Average of 12 numbers 1970. If average of 8 is 1965, average of remaining 4?

A. 1982

B. 1975

C. 1978

D. 1980

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Correct Answer: Option D

Explanation:
Sum12=23640. Sum8=15720. Remaining=7920. Average=1980.

This question belongs to: Maths Average

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