Average of 9 numbers 2390. If average of 6 is 2385, average of remaining 3? MCQ with Answer and Explanation

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Average of 9 numbers 2390. If average of 6 is 2385, average of remaining 3?

A. 2400

B. 2398

C. 2395

D. 2405

Answer: Option A

Solution (By JKSSB Mock Tests)

Sum9=21510. Sum6=14310. Remaining=7200. Average=2400.

This question belongs to: Maths Average

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Question #1

The average of 6 numbers is 29. If one number is 34, find the average of the remaining 5.

A. 28.2

B. 28

C. 27.6

D. 27.8

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Correct Answer: Option B

Explanation:
Sum=6×29=174. Remaining sum=174-34=140. Avg=140/5=28.

This question belongs to: Maths Average

Question #2

Average of 15 numbers 1810. If average of 9 is 1805, average of remaining 6?

A. 1818

B. 1815

C. 1820

D. 1817.5

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Correct Answer: Option D

Explanation:
Sum15=27150. Sum9=16245. Remaining=10905. Average=1817.5.

This question belongs to: Maths Average

Question #3

The average of 5 numbers is 29. If one number is 35, find the average of the remaining 4.

A. 27.5

B. 26.5

C. 28

D. 27

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Correct Answer: Option A

Explanation:
Sum=5×29=145. Remaining sum=145-35=110. Avg=110/4=27.5.

This question belongs to: Maths Average

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