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Question

# Mr. Patel walked 6 km to reach the station from his house, then he boarded a train whose average speed was 60 km/hr and thus he reached his destination. In this way, he took a total of 3 hours. If the average speed of the entire journey was 32 km/hr then the average speed of walking is:

A

3 km/hr

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B

4.5 km/hr

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C

4 km/hr

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D

none of these

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Solution

## The correct option is C 4 km/hr Go through options 64 = 1.5 hours, when he was walking Therefore time of journey by train = 3 - 1.5 = 1.5 Now, the distance travelled by train = 1.5 × 60 = 96 - 6 = 90 Hence correct. Alternatively: Total distance = 32 × 3 = 6 + 60 × x ⇒ x = 1.5 hours Thus, the speed of walking =61.5= = 4 km/hr

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