Average of 15 numbers 2010. If average of 9 is 2005, average of remaining 6? MCQ with Answer and Explanation

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Average of 15 numbers 2010. If average of 9 is 2005, average of remaining 6?

A. 2017.5

B. 2018

C. 2015

D. 2020

Answer: Option A

Solution (By JKSSB Mock Tests)

Sum15=30150. Sum9=18045. Remaining=12105. Average=2017.5.

This question belongs to: Maths Average

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Question #1

Average of 12 numbers 1420. If average of 8 is 1415, average of remaining 4?

A. 1432

B. 1425

C. 1430

D. 1428

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Correct Answer: Option C

Explanation:
Sum12=17040. Sum8=11320. Remaining=5720. Average=1430.

This question belongs to: Maths Average

Question #2

Average of 25 numbers 40. If average of 15 is 35, average of remaining 10?

A. 46

B. 48

C. 47.5

D. 45

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Correct Answer: Option C

Explanation:
Sum25=1000. Sum15=525. Remaining=475. Average=47.5.

This question belongs to: Maths Average

Question #3

The average of 75,85,95 is

A. 80

B. 85

C. 82

D. 90

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Correct Answer: Option B

Explanation:
255/3=85.

This question belongs to: Maths Average

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