Created by StemPy LabOne trip of km against the current and km with it takes a boat hours. Another trip of km against the current and km with it takes hours. How fast does the boat go in still water?
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← Eight years ago, Amar was 3 times as old as Biju. Eight years from now, Amar will be twice as old as Biju. What is the sum of their present ages?When the length of a rectangle is increased by 5 m and its breadth is decreased by 3 m, its area falls by 15 m². When the length is decreased by 5 m and the breadth is increased by 4 m, the area does not change. What is the area of the rectangle? →
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