59. A bus traveling along a straight highway covers one-
third of the total distance between two places with a
velocity 20 km h-1. The remaining part of the dis-
tance was covered with a velocity of 30 km h-1 for
the first half of the remaining time and with velocity
50 km h-T for the next half of the time. Find the
average velocity of the bus for its whole journey.
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Speed = distance / time .
- > Time = distance / speed = 1416 km / 59 km ,h = 24 h .
Explanation:
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