Average of 8 numbers 850. If average of 5 is 845, average of remaining 3? MCQ with Answer and Explanation

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Average of 8 numbers 850. If average of 5 is 845, average of remaining 3?

A. 858.33

B. 855

C. 860

D. 857

Answer: Option A

Solution (By JKSSB Mock Tests)

Sum8=6800. Sum5=4225. Remaining=2575. Average≈858.33.

This question belongs to: Maths Average

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Practice More Average Questions

Question #1

Average weight of 40 students 45 kg. If 10 more with average 50 kg join, new average?

A. 46.25

B. 45

C. 47

D. 46

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Correct Answer: Option D

Explanation:
Total old=1800. New=500. Total 2300 for 50. Average=46.

This question belongs to: Maths Average

Question #2

Average of 10 numbers 680. If average of 6 is 675, average of remaining 4?

A. 685

B. 690

C. 687.5

D. 686

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Correct Answer: Option C

Explanation:
Sum10=6800. Sum6=4050. Remaining=2750. Average=687.5.

This question belongs to: Maths Average

Question #3

Average of 12 numbers 2420. If average of 8 is 2415, average of remaining 4?

A. 2432

B. 2430

C. 2428

D. 2425

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Correct Answer: Option B

Explanation:
Sum12=29040. Sum8=19320. Remaining=9720. Average=2430.

This question belongs to: Maths Average

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