Question
The time to travel (x – 35) km upstream is the same as
the time for (2x – 115) km downstream. Given the boat’s speed is 11 km/h and the stream’s speed is 2 km/h, find ‘x’.Solution
ATQ,
(x – 35)/(11 – 2) = (2x – 115)/(11 + 2)
(x – 35)/9 = (2x – 115)/13
13x – 455 = 18x – 1035
5x = 580 → x = 116
So, the value of ‘x’ is 116 km.
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