A man travels first half distance at 20 km/h, second at 30 km/h. Average speed? MCQ with Answer and Explanation

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A man travels first half distance at 20 km/h, second at 30 km/h. Average speed?

A. 25 km/h

B. 22 km/h

C. 24 km/h

D. 26 km/h

Answer: Option C

Solution (By JKExamLibrary)

2*20*30/(20+30)=1200/50=24 km/h.

This question belongs to: Maths Average

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The average of 12,24,36,48 is

A. 28

B. 32

C. 30

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Correct Answer: Option C

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Question #2 Report Error

Average of 10 numbers 1230. If average of 6 is 1225, average of remaining 4?

A. 1236

B. 1237.5

C. 1235

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The average of 8 numbers is 34. If each number is multiplied by 1.5, what is the new average?

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