Average of 9,18,27,36,45 is MCQ with Answer and Explanation

Average of 9,18,27,36,45 is

A. 28

B. 25

C. 30

D. 27

Answer: Option D

Sum=135. Average=27.

This question belongs to: Maths Average

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Question #1 Report Error

Average of 12 numbers 55. If average of 8 is 50, average of remaining 4?

A. 70

B. 65

C. 60

D. 62.5

Correct Answer: Option B

Explanation:
Sum12=660. Sum8=400. Remaining=260. Average=65.

This question belongs to: Maths Average

Question #2 Report Error

Average of 15 numbers 50. If average of 10 is 55, average of remaining 5?

A. 35

B. 40

C. 45

D. 42

Correct Answer: Option B

Explanation:
Sum15=750. Sum10=550. Remaining=200. Average=40.

This question belongs to: Maths Average

Question #3 Report Error

Average of 30 numbers 20. If each decreased by 4, new average?

A. 18

B. 16

C. 20

D. 24

Correct Answer: Option B

Explanation:
16.

This question belongs to: Maths Average