Average of 9 consecutive odd numbers is 27. What is the smallest? MCQ with Answer and Explanation

Average of 9 consecutive odd numbers is 27. What is the smallest?

A. 23

B. 19

C. 17

D. 21

Answer: Option B

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

This question belongs to: Maths Average

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Question #1 Report Error

The average of 8 numbers is 40. If one number is 20, find the average of the remaining 7.

A. 43

B. 42

C. 42.86

D. 41.5

Correct Answer: Option C

Explanation:
Sum=8×40=320. Remaining sum=320-20=300. Avg=300/7=42.86.

This question belongs to: Maths Average

Question #2 Report Error

Find average of all even numbers from 1 to 50.

A. 24

B. 25

C. 26

D. 27

Correct Answer: Option C

Explanation:
Even numbers: 2 to 50, 25 numbers. Average = (2+50)/2 = 26.

This question belongs to: Maths Average

Question #3 Report Error

Average of 30 students 60 marks. If 10 students 70 marks, average of remaining 20?

A. 55

B. 58

C. 50

D. 52

Correct Answer: Option A

Explanation:
Total=1800. 10=700. Remaining=1100/20=55.

This question belongs to: Maths Average