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. 60

B. 63

C. 62.5

D. 65

Answer: Option C

Solution (By JKSSB Mock Tests)

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

This question belongs to: Maths Average

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Question #1

Average of first 10 multiples of 9 is

A. 49.5

B. 54.5

C. 50

D. 45

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Correct Answer: Option A

Explanation:
9*(1+10)/2 =9*5.5=49.5.

This question belongs to: Maths Average

Question #2

Average of 8 numbers 300. If average of 5 is 295, average of remaining 3?

A. 305

B. 307

C. 310

D. 308.33

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Correct Answer: Option D

Explanation:
Sum8=2400. Sum5=1475. Remaining=925. Average≈308.33.

This question belongs to: Maths Average

Question #3

Average of 24,36,48,60,72 is

A. 48

B. 45

C. 50

D. 42

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Correct Answer: Option A

Explanation:
240/5=48.

This question belongs to: Maths Average

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