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

Average of 18,27,36,45 is

A. 32

B. 30

C. 33

D. 31.5

Answer: Option D

Sum=126. Average=31.5.

This question belongs to: Maths Average

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Question #1 Report Error

Average of 15 numbers 2110. If average of 9 is 2105, average of remaining 6?

A. 2120

B. 2115

C. 2118

D. 2117.5

Correct Answer: Option D

Explanation:
Sum15=31650. Sum9=18945. Remaining=12705. Average=2117.5.

This question belongs to: Maths Average

Question #2 Report Error

Average of 12 numbers 50. If average of 7 is 45, average of remaining 5?

A. 60

B. 58

C. 55

D. 57

Correct Answer: Option D

Explanation:
Sum12=600. Sum7=315. Remaining=285. Average=57.

This question belongs to: Maths Average

Question #3 Report Error

The average of squares of first 4 natural numbers is

A. 6.5

B. 7.5

C. 9

D. 8.5

Correct Answer: Option B

Explanation:
(1+4+9+16)/4=30/4=7.5.

This question belongs to: Maths Average