Average of 10 numbers 280. If average of 6 is 275, average of remaining 4? MCQ with Answer and Explanation

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Average of 10 numbers 280. If average of 6 is 275, average of remaining 4?

A. 285

B. 287.5

C. 286

D. 290

Answer: Option B

Solution (By JKSSB Mock Tests)

Sum10=2800. Sum6=1650. Remaining=1150. Average=287.5.

This question belongs to: Maths Average

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Practice More Average Questions

Question #1

The average of 35,42,49,56 is

A. 46

B. 44

C. 45.5

D. 47

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Correct Answer: Option C

Explanation:
Sum=182. Average=45.5.

This question belongs to: Maths Average

Question #2

Average of 20 numbers 60. If each is halved, new average?

A. 120

B. 15

C. 30

D. 60

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Correct Answer: Option C

Explanation:
30.

This question belongs to: Maths Average

Question #3

Average of 20 numbers 50. If each number is doubled, new average?

A. 100

B. 25

C. 50

D. 75

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Correct Answer: Option A

Explanation:
New average =100.

This question belongs to: Maths Average

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