The average of 10 numbers is 14. If each number is decreased by 3, what is the new average? MCQ with Answer and Explanation

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The average of 10 numbers is 14. If each number is decreased by 3, what is the new average?

A. 14

B. 17

C. 11

D. 8

Answer: Option C

Solution (By JKSSB Mock Tests)

New average =14-3=11.

This question belongs to: Maths Average

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Question #1

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The average of 6 numbers is 21. If one number is 15, find the average of the remaining 5.

A. 22.2

B. 21.4

C. 21.6

D. 22

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Correct Answer: Option A

Explanation:
Sum=6×21=126. Remaining sum=126-15=111. Avg=111/5=22.2.

This question belongs to: Maths Average

Question #2

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Average of 825,1100,1375 is

A. 1110

B. 1090

C. 1100

D. 1095

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Correct Answer: Option C

Explanation:
3300/3=1100.

This question belongs to: Maths Average

Question #3

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If the average of first 5 multiples of 6 is x, what is x?

A. 24

B. 18

C. 15

D. 21

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Correct Answer: Option B

Explanation:
6,12,18,24,30. Sum=90. Average=18.

This question belongs to: Maths Average

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