Average of 20 numbers 25. If each increased by 5, new average? MCQ with Answer and Explanation

Average of 20 numbers 25. If each increased by 5, new average?

A. 32

B. 25

C. 30

D. 28

Answer: Option C

New average=30.

This question belongs to: Maths Average

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

Question #1 Report Error

Average of 9 consecutive even numbers is 30. Smallest?

A. 20

B. 26

C. 22

D. 24

Correct Answer: Option C

Explanation:
Middle 5th=30. Smallest=30-8=22.

This question belongs to: Maths Average

Question #2 Report Error

The average weight of 8 persons increases by 2.5 kg when one person weighing 65 kg is replaced by a new person. What is the weight of the new person?

A. 90

B. 75

C. 80

D. 85

Correct Answer: Option D

Explanation:
Increase in total weight = 8 × 2.5 = 20 kg. New person weight = 65 + 20 = 85 kg.

This question belongs to: Maths Average

Question #3 Report Error

The average of 4 numbers is 24. If each number is multiplied by 4, what is the new average?

A. 72

B. 24

C. 96

D. 48

Correct Answer: Option C

Explanation:
New average =24×4=96.

This question belongs to: Maths Average