Vishwanath
Wednesday, March 13, 2013
8. A boat takes 4 hours for travelling downstream from point A to point B aild coming back to point A upstream. If the velocity of the stream is 2 kmph and the speed of the boat in still water is 4 kmph, what is the distance between A and B? . [Bank P0. 1991]
4 kms 8 km
6 km 9 km
Answer: 6 km
Explanation: Let the distance between A and B be x km.
Speed downstream = 6 kmph, speed upstream = 2 kmph.
(x/6) + (x/2) = 4 4x = 24 hence x = 6
Distance AB = 6 km
Title : BOATS and STREAMS Q8
Description : 8. A boat takes 4 hours for travelling downstream from point A to point B aild coming back to point A upstream. If the velocity of the strea...
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