Average of 9 numbers 1690. If average of 6 is 1685, average of remaining 3? MCQ with Answer and Explanation

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Average of 9 numbers 1690. If average of 6 is 1685, average of remaining 3?

A. 1705

B. 1698

C. 1700

D. 1695

Answer: Option C

Solution (By JKSSB Mock Tests)

Sum9=15210. Sum6=10110. Remaining=5100. Average=1700.

This question belongs to: Maths Average

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Question #1

Average of 10 numbers 2780. If average of 6 is 2775, average of remaining 4?

A. 2790

B. 2785

C. 2787.5

D. 2786

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Correct Answer: Option C

Explanation:
Sum10=27800. Sum6=16650. Remaining=11150. Average=2787.5.

This question belongs to: Maths Average

Question #2

Average of 8 numbers 1150. If average of 5 is 1145, average of remaining 3?

A. 1160

B. 1158.33

C. 1155

D. 1157

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Correct Answer: Option B

Explanation:
Sum8=9200. Sum5=5725. Remaining=3475. Average≈1158.33.

This question belongs to: Maths Average

Question #3

Average of 40 numbers is 36. If 4 numbers average 40 removed, new average of 36 numbers?

A. 34

B. 35

C. 36

D. 35.56

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Correct Answer: Option D

Explanation:
Sum40=1440. Sum4=160. Remaining=1280/36≈35.56.

This question belongs to: Maths Average

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