Find the average of the first 5 multiples of 7. MCQ with Answer and Explanation

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Find the average of the first 5 multiples of 7.

A. 19.5

B. 20

C. 21

D. 22

Answer: Option C

Solution (By JKSSB Mock Tests)

Multiples:7,14,21,28,35 sum=105, count=5, avg=21.

This question belongs to: Maths Average

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Question #1

The average of 540,720,900 is

A. 730

B. 710

C. 720

D. 715

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Correct Answer: Option C

Explanation:
2160/3=720.

This question belongs to: Maths Average

Question #2

Average of 15,25,35 is

A. 20

B. 28

C. 30

D. 25

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Correct Answer: Option D

Explanation:
Sum=75. Average=25.

This question belongs to: Maths Average

Question #3

Average of a,b,c,d is 25. If a=20, b=30, c=25, d=?

A. 20

B. 22

C. 25

D. 30

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Correct Answer: Option C

Explanation:
d=100-75=25.

This question belongs to: Maths Average

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