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ATQ,
We are given: The speed of the boat downstream = 36 km/h The speed of the boat upstream = 26 km/h The time for traveling (k+60) km downstream and (l+40) km upstream is 16 hours. The time for traveling (k+120) km upstream and (l+80) km downstream is 22 hours.
After solving these equations, we find: k=321.86 and l = 100.23 The difference between k and l is: k − l = 321.86 − 100.23 = 221.63 So, the difference between k and l is 221.63.
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