The average of 9 numbers is 33. If one number is 55, find the average of the remaining 8. MCQ with Answer and Explanation

The average of 9 numbers is 33. If one number is 55, find the average of the remaining 8.
A. 31
B. 30.25
C. 30
D. 29.75
Answer: Option B
Solution (By JKSSB Mock Tests)
Sum=9×33=297. Remaining sum=297-55=242. Avg=242/8=30.25.

This question belongs to: Maths Average
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Practice More Average Questions

Question #1
The average of 9 numbers is 27. If one number is 36, find the average of the remaining 8.
A. 25.5
B. 25.875
C. 26
D. 26.5

Correct Answer: Option B


Explanation:
Sum=9×27=243. Remaining sum=243-36=207. Avg=207/8=25.875.

This question belongs to: Maths Average
Question #2
Average of 9 consecutive odd numbers is 27. What is the smallest?
A. 19
B. 17
C. 23
D. 21

Correct Answer: Option A


Explanation:
Middle=27. Smallest=27 -8=19.

This question belongs to: Maths Average
Question #3
Average of 12 numbers 2120. If average of 8 is 2115, average of remaining 4?
A. 2128
B. 2125
C. 2132
D. 2130

Correct Answer: Option D


Explanation:
Sum12=25440. Sum8=16920. Remaining=8520. Average=2130.

This question belongs to: Maths Average