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Mars is known as the "Red Planet" due to its reddish appearance, which is caused by iron oxide (rust) on its surface.
A boat travels faster than the stream by 28 km/h. It covers a distance of 112 km upstream and returns 132 km downstream, all within 7 hours. Calculate t...
A man can row at 36 km/hr in still water. In a stream which is flowing at 12 km/hr, it takes him 3 hrs to a place and back. How far is the place?
The speed of a boat in still water is 6 km/hr more than that of the current. The time taken by the boat to cover 825 km downstream is 16.5 hours. Find t...
A boat running downstream covers a distance of 42 km in 6 hrs and covering the same distance upstream in 14 hrs. What is the speed of a boat in still wa...
If the speed of a boat in a still water is 20 km per hour and the speed of current is 5 km per hour then the time taken by the boat to travel 100 KM wit...
A boatman takes 9 hours to cover 64 km downstream and 60 km upstream. If the ratio of his speed downstream to his speed upstream is 4:3, what is the spe...
P and Q can complete a work in 24 days and 36 days, respectively. P, Q and R together can complete the work in 12 days. If R get a total wage of Rs. 612...
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...
Two boats X and Y start towards each other from two places, 119 km apart. Speed of the boat X and Y in still water are 7 km/hr and 10 km/hr respectively...
A boat takes half time in moving a certain distance downstream than upstream. The ratio of the speed of the boat in still water and that of the current...
