The average of 10 numbers is 12. If each number is divided by 4, what is the new average? MCQ with Answer and Explanation

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The average of 10 numbers is 12. If each number is divided by 4, what is the new average?

A. 3

B. 2

C. 5

D. 4

Answer: Option A

Solution (By JKSSB Mock Tests)

New average =12/4=3.

This question belongs to: Maths Average

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Question #1

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The average of 3 numbers is 15. If each number is multiplied by 4, what is the new average?

A. 75

B. 45

C. 60

D. 30

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Correct Answer: Option C

Explanation:
New average =15×4=60.

This question belongs to: Maths Average

Question #2

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Average of 10 numbers 130. If average of 6 is 125, average of remaining 4?

A. 138

B. 140

C. 137.5

D. 135

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Correct Answer: Option C

Explanation:
Sum10=1300. Sum6=750. Remaining=550. Average=137.5.

This question belongs to: Maths Average

Question #3

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Average of 6 numbers is 8.5. If two numbers 12 and 15 are added, what is the new average?

A. 9

B. 9.5

C. 10

D. 9.75

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Correct Answer: Option D

Explanation:
Sum of 6=51. New sum=51+12+15=78. Numbers=8. Average=78/8=9.75.

This question belongs to: Maths Average

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