Average of 15 numbers 1010. If average of 9 is 1005, average of remaining 6? MCQ with Answer and Explanation

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Average of 15 numbers 1010. If average of 9 is 1005, average of remaining 6?

A. 1015

B. 1018

C. 1017.5

D. 1020

Answer: Option C

Solution (By JKSSB Mock Tests)

Sum15=15150. Sum9=9045. Remaining=6105. Average=1017.5.

This question belongs to: Maths Average

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Question #1

Average of 405,540,675 is

A. 535

B. 540

C. 530

D. 550

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Correct Answer: Option B

Explanation:
1620/3=540.

This question belongs to: Maths Average

Question #2

Average of 8 numbers 250. If average of 5 is 245, average of remaining 3?

A. 257

B. 260

C. 258.33

D. 255

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Correct Answer: Option C

Explanation:
Sum8=2000. Sum5=1225. Remaining=775. Average≈258.33.

This question belongs to: Maths Average

Question #3

The average of 6 numbers is 12. If one number is 20, find the average of the rest.

A. 10.4

B. 9.6

C. 11

D. 10

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Correct Answer: Option A

Explanation:
Sum=6×12=72. Rest sum=72-20=52. Average=52/5=10.4.

This question belongs to: Maths Average

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