Problems 1 : During first half of a journey by a body it travel
with a speed of 40 km/hr and in the next half it travels with a
speed of 20 km/hr. Calculate the average speed of the whole
journey.
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Answer:
the average speed of the whole journey is 30km/hr.
Explanation:
total speed travel= 40+20= 60km/hr
average speed = 60/2 = 30 km/hr
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