Average of 15 numbers 2460. If average of 9 is 2455, average of remaining 6? MCQ with Answer and Explanation

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Average of 15 numbers 2460. If average of 9 is 2455, average of remaining 6?

A. 2470

B. 2467.5

C. 2468

D. 2465

Answer: Option B

Solution (By JKExamLibrary)

Sum15=36900. Sum9=22095. Remaining=14805. Average=2467.5.

This question belongs to: Maths Average

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Practice More Average Questions

Question #1

Average of 1065,1420,1775 is

A. 1430

B. 1420

C. 1415

D. 1410

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Correct Answer: Option B

Explanation:
4260/3=1420.

This question belongs to: Maths Average

Question #2

What is the average of all even numbers from 2 to 30?

A. 15

B. 15.5

C. 16

D. 16.5

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Correct Answer: Option C

Explanation:
Even numbers: 2 to 30 inclusive. Number of terms = (30-2)/2+1=15. Sum = n/2*(first+last) =15/2*(2+30)=15/2*32=240. Average=240/15=16.

This question belongs to: Maths Average

Question #3

Average of 12 numbers 75. If average of 7 is 70, average of remaining 5?

A. 80

B. 78

C. 85

D. 82

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Correct Answer: Option D

Explanation:
Sum12=900. Sum7=490. Remaining=410. Average=82.

This question belongs to: Maths Average

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