Question
Download Solution PDFA boat goes 270 km downstream in 30 hours and a distance of 203 km upstream in 29 hours. Find the speed of the water. (In kmph)
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFGiven:
Distance downstream = 270 km
Time downstream = 30 hours
Distance upstream = 203 km
Time upstream = 29 hours
Formula used:
Speed of boat downstream = Distance downstream / Time downstream
Speed of boat upstream = Distance upstream / Time upstream
Speed of water = (Speed downstream - Speed upstream) / 2
Calculation:
Speed downstream = 270 / 30 = 9 kmph
Speed upstream = 203 / 29 = 7 kmph
Speed of water = (9 - 7) / 2
⇒ Speed of water = 1 kmph
∴ The correct answer is option (1).
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