Average of 1 to 50 is MCQ with Answer and Explanation

Average of 1 to 50 is

A. 24.5

B. 25

C. 25.5

D. 26

Answer: Option C

(50×51)/2 /50 =25.5.

This question belongs to: Maths Average

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Question #1 Report Error

The average of 6 numbers is 27. If one number is 33, find the average of the remaining 5.

A. 25.4

B. 25.8

C. 26

D. 26.2

Correct Answer: Option B

Explanation:
Sum=6×27=162. Remaining sum=162-33=129. Avg=129/5=25.8.

This question belongs to: Maths Average

Question #2 Report Error

Find average of all even numbers from 1 to 50.

A. 27

B. 24

C. 26

D. 25

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

The average of 9 numbers is 42. If each number is decreased by 6, what is the new average?

A. 42

B. 36

C. 48

D. 30

Correct Answer: Option B

Explanation:
New average =42-6=36.

This question belongs to: Maths Average