125 gallons of a mixture contains 20% water. what amount of additional water should be added such that water content is raised to 25%?
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which of the following has recently hosted the opening ceremony of the 2018 Asian Games?

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A man can row 6 km/hr in still water. If the speed of the current is 2 km/hr, it takes 3 hrs more in upstream than in the downstream for the same distance. The distance is-

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A train 150 m long passes a pole in 15 seconds and crosses another train of the same length travelling in opposite directions in 8 seconds. The speed of the second train in (km/h) is:

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The ratio of the speeds of a train and a man is 6:1. The length of the train is 650 m and crosses a pole in 1 minute 5 seconds. In how much time will the man cross the 240m long platform?

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