Average of 9 numbers 1590. If average of 6 is 1585, average of remaining 3? MCQ with Answer and Explanation

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Average of 9 numbers 1590. If average of 6 is 1585, average of remaining 3?

A. 1595

B. 1605

C. 1600

D. 1598

Answer: Option C

Solution (By JKSSB Mock Tests)

Sum9=14310. Sum6=9510. Remaining=4800. Average=1600.

This question belongs to: Maths Average

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Question #1

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

A. 2018

B. 2015

C. 2017.5

D. 2020

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Correct Answer: Option C

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

This question belongs to: Maths Average

Question #2

The average of 9 numbers is 33. If one number is 55, find the average of the remaining 8.

A. 30

B. 31

C. 30.25

D. 29.75

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Correct Answer: Option C

Explanation:
Sum=9×33=297. Remaining sum=297-55=242. Avg=242/8=30.25.

This question belongs to: Maths Average

Question #3

Average of 15 numbers 50. If average of 10 is 55, average of remaining 5?

A. 45

B. 40

C. 35

D. 42

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Correct Answer: Option B

Explanation:
Sum15=750. Sum10=550. Remaining=200. Average=40.

This question belongs to: Maths Average

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