The average of 630,840,1050 is MCQ with Answer and Explanation

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The average of 630,840,1050 is

A. 835

B. 850

C. 840

D. 830

Answer: Option C

Solution (By JKSSB Mock Tests)

2520/3=840.

This question belongs to: Maths Average

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Question #1

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Average of 25 numbers 42. If one number 60 replaced by 30, new average?

A. 41

B. 40

C. 42

D. 43

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Correct Answer: Option A

Explanation:
Change -30, decrease 1.2, new 40.8 approx 41.

This question belongs to: Maths Average

Question #2

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Average of 10,15,20,25,30,35,40 is

A. 22.5

B. 25

C. 24

D. 26

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Correct Answer: Option B

Explanation:
Sum=175. Average=25.

This question belongs to: Maths Average

Question #3

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The average of 6 numbers is 20. If one number is 10, find the average of the rest.

A. 20.5

B. 21.5

C. 22

D. 21

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Correct Answer: Option C

Explanation:
Sum=6×20=120. Rest sum=120-10=110. Avg=110/5=22.

This question belongs to: Maths Average

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