The average of 6 numbers is 15. If each number is increased by 7, what is the new average? MCQ with Answer and Explanation

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The average of 6 numbers is 15. If each number is increased by 7, what is the new average?

A. 29

B. 8

C. 15

D. 22

Answer: Option D

Solution (By JKSSB Mock Tests)

New average =15+7=22.

This question belongs to: Maths Average

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Question #1

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Average of 4,8,12,...,36 is

A. 18

B. 24

C. 20

D. 22

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Correct Answer: Option C

Explanation:
9 numbers. Average=(4+36)/2=20.

This question belongs to: Maths Average

Question #2

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If the average of a,b,c,d is 30 and average of a,b is 25, average of c,d is

A. 30

B. 32

C. 28

D. 35

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Correct Answer: Option D

Explanation:
a+b+c+d =120. a+b=50. c+d=70. Average c,d =35.

This question belongs to: Maths Average

Question #3

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The average of 4 numbers is 28. If one number is 32, find the average of the remaining 3.

A. 28

B. 26.67

C. 26

D. 27

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Correct Answer: Option B

Explanation:
Sum=4×28=112. Remaining sum=112-32=80. Avg=80/3=26.67.

This question belongs to: Maths Average

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