A man travels a distance of 25 km from his house to an exhibition by cycle at 15 km/hr and returns back on foot at 8 km/hr. find his average speed for the whole journey.
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Answer:in the figure
Step-by-step explanation:
's' denotes speed
'd' denotes distance
speed = distance/time
therefore, time = distance/speed
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average speed is 23/240 km/h for the whole journey .
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