The slope of a line passing through points (-2, 3) and (4, -1) is:
Slope m = (y2 - y1) / (x2 - x1) = (-1 - 3) / (4 - (-2)) = -4/6 = -2/3. Correct answer : c) -2/3
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Pipe ‘A’ can fill a tank in 60 hours whereas leak ‘A’ can empty it in 70 hours. If they both operate along with pipe ‘B’, then the given tan...
Pipe ‘A’ can fill a tank in 40 hours whereas leak ‘A’ can empty it in 50 hours. If they both operate along with pipe ‘B’, then the given tan...
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Pipe ‘A’ can fill a tank in 20 hours while pipe ‘B’ takes 25 hours to empty it. Pipe ‘A’ is opened alone when the tank was empty and after 1...
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Pipe ‘A’ can fill a tank in 10 hours while pipe ‘B’ can empty it in 12 hours. They were operated on alternate hours starting with pipe ‘A’. ...
Pipe A can fill a tank in 50% less time than it takes pipe B to empty it, while pipe C can fill the same tank in 25% less time than pipe B's emptying du...
In what time would a Cistern be filled by three pipes whose diameter are 2cm, 2 2/3cm and 4cm running together, where the largest pipe alone fill it in ...
