Average of 6,12,18,24,30,36,42 is MCQ with Answer and Explanation

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Average of 6,12,18,24,30,36,42 is

A. 24

B. 25

C. 22

D. 26

Answer: Option A

Solution (By JKSSB Mock Tests)

Sum=168. Average=24.

This question belongs to: Maths Average

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Question #1

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The average of 50,55,60,65 is

A. 55

B. 58

C. 57.5

D. 60

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Correct Answer: Option C

Explanation:
230/4=57.5.

This question belongs to: Maths Average

Question #2

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Average of 15 numbers 510. If average of 9 is 505, average of remaining 6?

A. 517.5

B. 518

C. 515

D. 520

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Correct Answer: Option A

Explanation:
Sum15=7650. Sum9=4545. Remaining=3105. Average=517.5.

This question belongs to: Maths Average

Question #3

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If average of 4 numbers is x and average of 6 other is y, average of all 10 is

A. x + y

B. (x + y)/2

C. (4x + 6y)/10

D. (2x + 3y)/5

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Correct Answer: Option C

Explanation:
Total = 4x + 6y. Average = (4x + 6y)/10.

This question belongs to: Maths Average

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