A bus travel to a place at the speed of 45 km per hour and 60 km per hour respectively .If the second bus taken 7/2 hour less than the first for the same journey. Find the length of the journey.
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or (S - 15/2)^2 = 28225/4. or S - 15/2 = √28225/2 ≈ 84. or S = 84 + 7.5 = 91.5 (km/hr) [Ans]
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