Speed of a boat in downstream is 50% more than that in upstream. Total time to travel 48 km upstream and 36 km downstream is 6 hours. What is the speed of boat in downstream?
Speed of a boat in downstream = 150/100×Speed of a boat in upstream DS: US= 3x : 2x According to question, => 48/2x + 36/3x = 6 => 144 + 72 = 36x => x = 6 Speed of a boat in downstream = 3x = 3×6 = 18 km/hr
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