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. 267.5

B. 270

C. 268

D. 265

Answer: Option A

Solution (By JKSSB Mock Tests)

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

This question belongs to: Maths Average

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Practice More Average Questions

Question #1

The average of 5 numbers is 20. If each number is divided by 2, what is the new average?

A. 5

B. 20

C. 10

D. 15

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Correct Answer: Option C

Explanation:
New average =20/2=10.

This question belongs to: Maths Average

Question #2

Average of 9 numbers 2740. If average of 6 is 2735, average of remaining 3?

A. 2745

B. 2750

C. 2748

D. 2755

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Correct Answer: Option B

Explanation:
Sum9=24660. Sum6=16410. Remaining=8250. Average=2750.

This question belongs to: Maths Average

Question #3

Average of 10 numbers 680. If average of 6 is 675, average of remaining 4?

A. 686

B. 690

C. 687.5

D. 685

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Correct Answer: Option C

Explanation:
Sum10=6800. Sum6=4050. Remaining=2750. Average=687.5.

This question belongs to: Maths Average

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