Gnpth wrote:
A boat moves from city X to city Y. What is the speed of the boat in still water?
(1) Speed of the river current is 3 m/s
(2) The distance between city X and the boat is increasing at the rate of 2 m/s
S1: No information about the speed of the boat so insufficient.
S2: This statement gives that the speed of the boat in the river including the speed of current is 2m/s. From this we can not find the speed of the boat in still water unless you have the speed of the river current. SO insufficient.
S1&S2
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