Question
The ratio of the boat's speed in still water to the speed
of the stream is given as 16:4. The boat takes a total time in the ratio 10:7 to travel (d + 120) km upstream and (d - 60) km downstream. Determine the value of d.Solution
ATQ;
Let speed of boat in still water and speed of stream be ‘16a’ km/h and ‘4a’ km/h respectively.
Upstream speed = 16a – 4a = 12a km/h
Downstream speed = 16a + 4a = 20a km/h
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