A super fast bus starting from 'tatanagar' and reaches 'ghatsila' in 45 minutes with an average speed of 40 km/ hr. if the speed is increashead by 10km/hr how much time it will take to cover the same distance.
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Answer:
36 minutes
Explanation:
Let the time be x
We have,
t1 v1 = t2 v2
Because distance is same in both cases and velocity (v) is ratio of distance (d) to the time (t)
=> 45×40 = (40+10) x (x) as speed is increased by 10km/hr
X turns out to be 36 minutes
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