Average of 15 numbers 260. If average of 9 is 255, average of remaining 6? MCQ with Answer and Explanation

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Average of 15 numbers 260. If average of 9 is 255, average of remaining 6?

A. 265

B. 267.5

C. 268

D. 270

Answer: Option B

Solution (By JKSSB Mock Tests)

Sum15=3900. Sum9=2295. Remaining=1605. Average=267.5.

This question belongs to: Maths Average

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Question #1

Average of 8 numbers 1600. If average of 5 is 1595, average of remaining 3?

A. 1610

B. 1608.33

C. 1605

D. 1607

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Correct Answer: Option B

Explanation:
Sum8=12800. Sum5=7975. Remaining=4825. Average≈1608.33.

This question belongs to: Maths Average

Question #2

Average of 10,25,40,55 is

A. 30

B. 33

C. 32.5

D. 35

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Correct Answer: Option C

Explanation:
130/4=32.5.

This question belongs to: Maths Average

Question #3

Average of 55,110,165 is

A. 105

B. 120

C. 110

D. 100

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Correct Answer: Option C

Explanation:
330/3=110.

This question belongs to: Maths Average

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