Average of 45,55,65 is MCQ with Answer and Explanation

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Average of 45,55,65 is

A. 50

B. 52

C. 60

D. 55

Answer: Option D

Solution (By JKSSB Mock Tests)

Sum=165. Average=55.

This question belongs to: Maths Average

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Question #1

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Average of 21, 28, 35, 42 is

A. 30

B. 32

C. 31.5

D. 33

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Correct Answer: Option C

Explanation:
Sum=126. Average=31.5.

This question belongs to: Maths Average

Question #2

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The average marks of 18 students is 68. If a student with 82 marks joins, what is the new average?

A. 68.74

B. 68.5

C. 69.0

D. 68.2

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Correct Answer: Option A

Explanation:
Sum=18×68=1224. New sum=1224+82=1306. New avg=1306/19=68.74.

This question belongs to: Maths Average

Question #3

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Average of 525,700,875 is

A. 690

B. 700

C. 695

D. 710

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Correct Answer: Option B

Explanation:
2100/3=700.

This question belongs to: Maths Average

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