The average of all even numbers from 2 to 40 is MCQ with Answer and Explanation

The average of all even numbers from 2 to 40 is

A. 22

B. 20

C. 19

D. 21

Answer: Option D

(2+40)/2=21.

This question belongs to: Maths Average

No comments yet. Be the first to start the discussion!

Question #1 Report Error

The average of 7 numbers is 30. If each number is divided by 2, what is the new average?

A. 15

B. 14

C. 13

D. 16

Correct Answer: Option A

Explanation:
New average =30/2=15.

This question belongs to: Maths Average

Question #2 Report Error

The average of 8 numbers is 27. If each number is decreased by 4, what is the new average?

A. 31

B. 23

C. 19

D. 27

Correct Answer: Option B

Explanation:
New average =27-4=23.

This question belongs to: Maths Average

Question #3 Report Error

The average of 100 numbers is 50. The number 100 was misread as 10. Correct average?

A. 51

B. 50.9

C. 50

D. 49

Correct Answer: Option B

Explanation:
Error -90. Increase 90/100=0.9. New=50.9.

This question belongs to: Maths Average