A person covers 2/3 distance at 30 km/h and 1/3 at 60 km/h. Average speed? MCQ with Answer and Explanation

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A person covers 2/3 distance at 30 km/h and 1/3 at 60 km/h. Average speed?

A. 40 km/h

B. 36 km/h

C. 45 km/h

D. 35 km/h

Answer: Option B

Solution (By JKExamLibrary)

Let distance 3d. Time = (2d/30) + (d/60) = (4d + d)/60 =5d/60. Average =3d / (5d/60) =36.

This question belongs to: Maths Average

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B. 2070

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Explanation:
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This question belongs to: Maths Average

Question #2 Report Error

The average of 8 consecutive numbers is 25.5. Smallest number?

A. 23

B. 24

C. 22

D. 21

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Average of 8 numbers 1800. If average of 5 is 1795, average of remaining 3?

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