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

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Average of 18,27,36,45 is

A. 31.5

B. 33

C. 32

D. 30

Answer: Option A

Solution (By JKSSB Mock Tests)

Sum=126. Average=31.5.

This question belongs to: Maths Average

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Question #1

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What is the average of squares of first 5 natural numbers?

A. 15

B. 55

C. 10

D. 11

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Correct Answer: Option D

Explanation:
Squares: 1,4,9,16,25. Sum=55. Average=55/5=11.

This question belongs to: Maths Average

Question #2

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Average of 12 numbers 920. If average of 8 is 915, average of remaining 4?

A. 930

B. 925

C. 928

D. 932

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Correct Answer: Option A

Explanation:
Sum12=11040. Sum8=7320. Remaining=3720. Average=930.

This question belongs to: Maths Average

Question #3

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Average of 65,75,85,95 is

A. 78

B. 80

C. 85

D. 75

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Correct Answer: Option B

Explanation:
320/4=80.

This question belongs to: Maths Average

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