Find average of 11,22,33,...,99. MCQ with Answer and Explanation

Find average of 11,22,33,...,99.

A. 50

B. 60

C. 55

D. 45

Answer: Option C

11 times (1 to 9). Average 11×5=55.

This question belongs to: Maths Average

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Question #1 Report Error

Average of 15 numbers 1010. If average of 9 is 1005, average of remaining 6?

A. 1020

B. 1018

C. 1015

D. 1017.5

Correct Answer: Option D

Explanation:
Sum15=15150. Sum9=9045. Remaining=6105. Average=1017.5.

This question belongs to: Maths Average

Question #2 Report Error

The average of 1200,1600,2000 is

A. 1595

B. 1600

C. 1610

D. 1590

Correct Answer: Option B

Explanation:
4800/3=1600.

This question belongs to: Maths Average

Question #3 Report Error

The average of 1548,2064 is

A. 1800

B. 1810

C. 1806

D. 1790

Correct Answer: Option C

Explanation:
1806.

This question belongs to: Maths Average