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In 4 kg of metal Zinc Copper 4 ×1/3 4 ×2/3 4/3 8/3 In 5 kg of metal Zinc Copper 5 ×1/6 5 ×5/6 Now, new ratio = (4/3+ 5/6)/(8/3+ 25/6) = 13:41
A boat running downstream covers a distance of 39 km in 3 hrs and covering the same distance upstream in 13 hrs. What is the speed of a boat in still wa...
A boat travels a certain distance downstream in 72 minutes but takes 3 hours to cover the same distance upstream. The speed of the stream is 15 km/h. If...
A boat can cover 185 km in downstream in 5 hours and 120 km in upstream in 12 hours. Find the speed of boat in still water.
A boat covers a distance of 338 km upstream in 13 hours. After rain, the speed of the stream increases by 50%, and the speed of t...
A boat can travel 28 km downstream in 30 min. The ratio of the speed of the boat in still water to the speed of the stream is 5: 3. How much time will t...
Time taken by a boat to cover 253 km upstream is 49.99 % more than the time taken by the boat to cover 340 km downstream. Total time taken in covering b...
Speed of a boat in still water is 15 kmph and speed of stream is 12 kmph. A man rows to a place at a distance of 81 km and come back to starting point. ...
A man rows a certain distance downstream in 5 hours and back to the same point in 8 hours. If the speed of the stream is 4.5 km/hr then what is the spee...
If the sum of upstream and downstream speed is 30 km/hr and the speed of the current is 6 km/hr. Then find time taken to cover 84 km in downward?
Speed of current is equal to 25% of speed of boat in still water. If the boat takes 5 hours to cover 120 km in still water, then find the time taken by ...
