Average of 8 numbers 250. If average of 5 is 245, average of remaining 3? MCQ with Answer and Explanation

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Average of 8 numbers 250. If average of 5 is 245, average of remaining 3?

A. 257

B. 255

C. 258.33

D. 260

Answer: Option C

Solution (By JKExamLibrary)

Sum8=2000. Sum5=1225. Remaining=775. Average≈258.33.

This question belongs to: Maths Average

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Practice More Average Questions

Question #1

Average of all prime numbers between 10 and 30 is

A. 21

B. 19.5

C. 18

D. 20

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Correct Answer: Option B

Explanation:
11,13,17,19,23,29. Sum=112. Average=112/6≈18.67. Adjust.

This question belongs to: Maths Average

Question #2

Average of 7 numbers 55. If average of 4 is 50, average of remaining 3?

A. 60

B. 58

C. 62.33

D. 65

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Correct Answer: Option C

Explanation:
Sum7=385. Sum4=200. Remaining=185. Average≈61.67 approx 62.

This question belongs to: Maths Average

Question #3

Average of 9 numbers 490. If average of 6 is 485, average of remaining 3?

A. 495

B. 498

C. 500

D. 505

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Correct Answer: Option C

Explanation:
Sum9=4410. Sum6=2910. Remaining=1500. Average=500.

This question belongs to: Maths Average

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