The average of 7 numbers is 30. If each number is divided by 2, what is the new average? MCQ with Answer and Explanation

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The average of 7 numbers is 30. If each number is divided by 2, what is the new average?

A. 13

B. 14

C. 15

D. 16

Answer: Option C

Solution (By JKSSB Mock Tests)

New average =30/2=15.

This question belongs to: Maths Average

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Question #1

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Find the average of the first 5 multiples of 6.

A. 15

B. 16

C. 20

D. 18

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Correct Answer: Option D

Explanation:
Multiples:6,12,18,24,30 sum=90, count=5, avg=18.

This question belongs to: Maths Average

Question #2

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The average of 8 numbers is 31. If each number is increased by 3, what is the new average?

A. 37

B. 28

C. 34

D. 31

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Correct Answer: Option C

Explanation:
New average =31+3=34.

This question belongs to: Maths Average

Question #3

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Average of 15 numbers 25. If each increased by 3, new average?

A. 27

B. 26

C. 25

D. 28

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Correct Answer: Option D

Explanation:
New average =25+3=28.

This question belongs to: Maths Average

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