Question
Download Solution PDFA person can row 88 km downstream in 11 h, and 72 km upstream in 12 h. What is the speed of the current?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFGiven Data:
Distance downstream = 88 km
Time downstream = 11 hours
Distance upstream = 72 km
Time upstream = 12 hours
Concept:
Speed downstream = Distance downstream/Time downstream.
Speed upstream = Distance upstream/Time upstream.
Calculation:
Speed downstream = 88/11 = 8 km/hr
⇒ Speed upstream = 72/12 = 6 km/hr
⇒ Speed of the current = (8 - 6)/2 = 1 km/hr
Therefore, the speed of the current is 1 km/hr.
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