Average of 15 numbers 2610. If average of 9 is 2605, average of remaining 6? MCQ with Answer and Explanation

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Average of 15 numbers 2610. If average of 9 is 2605, average of remaining 6?

A. 2617.5

B. 2615

C. 2618

D. 2620

Answer: Option A

Solution (By JKSSB Mock Tests)

Sum15=39150. Sum9=23445. Remaining=15705. Average=2617.5.

This question belongs to: Maths Average

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Practice More Average Questions

Question #1

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

A. 9.6

B. 10.4

C. 10

D. 11

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Correct Answer: Option B

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

This question belongs to: Maths Average

Question #2

Average of 9 numbers 640. If average of 6 is 635, average of remaining 3?

A. 655

B. 648

C. 645

D. 650

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Correct Answer: Option D

Explanation:
Sum9=5760. Sum6=3810. Remaining=1950. Average=650.

This question belongs to: Maths Average

Question #3

The average score of a cricketer in 10 innings is 45. If he scores 70 in the next innings, what is his new average?

A. 47.27

B. 46.5

C. 48.5

D. 47.0

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Correct Answer: Option A

Explanation:
Sum of 10 =10×45=450. Sum of 11=450+70=520. New average=520/11=47.27.

This question belongs to: Maths Average

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