a bus traveling at42 km/hr covers a distance in 5hr . how musch time would it save if it increases it speed by 80 km/hr
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Apply Formula S=v/t...
(Convert km/hr into m/h for your convenience)
First find distance with the old value of speed and then substitute the distance(which you found) and the new speed into the formula and find the time... compare both the times and you will find time saved
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