Average of 15 numbers 2160. If average of 9 is 2155, average of remaining 6? MCQ with Answer and Explanation

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Average of 15 numbers 2160. If average of 9 is 2155, average of remaining 6?

A. 2165

B. 2168

C. 2167.5

D. 2170

Answer: Option C

Solution (By JKSSB Mock Tests)

Sum15=32400. Sum9=19395. Remaining=13005. Average=2167.5.

This question belongs to: Maths Average

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Question #1

Average of 8 numbers 2150. If average of 5 is 2145, average of remaining 3?

A. 2158.33

B. 2155

C. 2157

D. 2160

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Correct Answer: Option A

Explanation:
Sum8=17200. Sum5=10725. Remaining=6475. Average≈2158.33.

This question belongs to: Maths Average

Question #2

If average of 10 numbers is 20 and average of 6 is 18, average of remaining 4?

A. 22

B. 25

C. 24

D. 23

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Correct Answer: Option D

Explanation:
Sum10=200. Sum6=108. Remaining=92. Average=23.

This question belongs to: Maths Average

Question #3

Average of 9 numbers 440. If average of 6 is 435, average of remaining 3?

A. 448

B. 450

C. 445

D. 455

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Correct Answer: Option B

Explanation:
Sum9=3960. Sum6=2610. Remaining=1350. Average=450.

This question belongs to: Maths Average

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