A motor boat takes 2 hours to travel a distance 9km down the current and it takes 6 hours to travel the same distance against the current. The speed of the boat in still water and that of the current ( in km/hr) respectively are:
(3, 1.5)
(3,2)
(3.5,2.5)
(3,1)
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Hint: In order to solve the problem first find out the speed of the boat and the current for the problem first find out the upstream speed and the downstream speed of the boat respectively and then use the formula which gives the relation between speed of the boat, current in terms of upstream and downstream speed.
As we know the general formula for the speed is given by,
⇒speed=distance covered/time taken
Let the speed of boat in still water = x & speed of current = y
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