Question
A boat can cover 130 km in upstream in 13 hours and 120
km in downstream in 4 hours. Find the speed of the stream.Solution
Downstream speed = 120/4 = 30 km/hr Upstream speed = 130/13 = 10 km/hr Speed of stream = (30 – 10)/2 = 10 km/hr
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x1 + 2x2 + x...
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