One fast typist type some matter in 2hr and another slow typist type the same matter in 3hr. If both do combinedly in how much time they will finish.
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A person went to shop and asked for change for 1.15 paise. But he said that he could not only give change for one rupee but also for 50p, 25p, 10p and 5p. What were the coins he had ?
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12. A train 120 metres long passes an electric pole in 12 seconds and another train of same length traveling in opposite direction in 8 seconds. The speed of the second train is
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Two cars travel in the same direction at 40km/hr at a regular distance. A car comes in the opposite direction at 60km/hr. It meets each car in a gap of 8 seconds. What is the distance between the two cars?
If 1/x = 3.5. then 1/(x+2) =