The average of 55,65,75,85 is MCQ with Answer and Explanation

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The average of 55,65,75,85 is

A. 75

B. 70

C. 65

D. 72

Answer: Option B

Solution (By JKSSB Mock Tests)

280/4=70.

This question belongs to: Maths Average

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Question #1

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The average of 40 students marks 75. If 5 students average 90 included, new average?

A. 75

B. 76

C. 76.25

D. 77

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Correct Answer: Option C

Explanation:
Old total=3000. New 5 =450. Total 3450 /45=76.67? Adjust.

This question belongs to: Maths Average

Question #2

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Average of 18,36,54,72 is

A. 45

B. 42

C. 50

D. 40

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Correct Answer: Option A

Explanation:
180/4=45.

This question belongs to: Maths Average

Question #3

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The average of 48,64,80 is

A. 64

B. 62

C. 70

D. 60

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Correct Answer: Option A

Explanation:
192/3=64.

This question belongs to: Maths Average

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