The average of 9 numbers is 50. If one number is 70, find the average of the remaining 8. MCQ with Answer and Explanation

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The average of 9 numbers is 50. If one number is 70, find the average of the remaining 8.

A. 46.5

B. 47

C. 48

D. 47.5

Answer: Option D

Solution (By JKExamLibrary)

Sum=9×50=450. Remaining sum=450-70=380. Avg=380/8=47.5.

This question belongs to: Maths Average

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Practice More Average Questions

Question #1 Report Error

The average of 6 numbers is 25. If 5 is subtracted from each, new average?

A. 20

B. 30

C. 25

D. 22

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Correct Answer: Option A

Explanation:
New average =25 -5 =20.

This question belongs to: Maths Average

Question #2 Report Error

What is the average of the first 7 multiples of 5?

A. 30

B. 25

C. 15

D. 20

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Correct Answer: Option D

Explanation:
Multiples: 5,10,15,20,25,30,35 sum=140, count=7, avg=20.

This question belongs to: Maths Average

Question #3 Report Error

If average of 9 numbers is 30 and average of 6 is 28, average of remaining 3?

A. 35

B. 33

C. 32

D. 34

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Correct Answer: Option D

Explanation:
Sum9=270. Sum6=168. Remaining=102. Average=34.

This question belongs to: Maths Average

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