Average of all three digit numbers is MCQ with Answer and Explanation

Average of all three digit numbers is

A. 500

B. 550

C. 600

D. 549.5

Answer: Option D

(100+999)/2=549.5.

This question belongs to: Maths Average

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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. 13

C. 16

D. 14

Correct Answer: Option A

Explanation:
New average =30/2=15.

This question belongs to: Maths Average

Question #2 Report Error

Average of 50 numbers 45. If 10 numbers average 55 removed, new average of 40?

A. 40

B. 42.5

C. 41

D. 43

Correct Answer: Option B

Explanation:
Total=2250. Removed=550. Remaining=1700/40=42.5.

This question belongs to: Maths Average

Question #3 Report Error

Average of 12 numbers 2320. If average of 8 is 2315, average of remaining 4?

A. 2328

B. 2332

C. 2325

D. 2330

Correct Answer: Option D

Explanation:
Sum12=27840. Sum8=18520. Remaining=9320. Average=2330.

This question belongs to: Maths Average