Question
The mine explosions are mostly caused by the combination
of air with which gas?Solution
The correct answer is B
The time taken by the boat to cover (d+130) km distance in downstream is 1.9 hours less than the time taken by the same boat to cover (d-45) km distance...
The ratio of the speed of the boat in upstream to that of in downstream is 3:4, respectively. If the speed of the current is 5 km/h, then find the speed...
The speed of a boat in still water and the speed of the stream are in the ratio 7:2. If the boat takes 12 hours to travel 240 km upstream, how long will...
A boat can cover 84 km upstream and 252 km downstream in 14 hours. Speed of the stream is how much less than the speed of the boat in still water if the...
A man can row 8 km/hr in still water. If the speed of the current is 2 km/hr, it takes 5 hours more in upstream than in the downstream for the same dist...
A boat takes a third time to cover a certain distance downstream compared to upstream. What is the ratio of the speed of the boat in still water to the ...
Speed of stream 'X' is 2 km/h more than speed of stream 'Y'. Sum of upstream speed of a boat in 'X' and its downstream speed in 'Y' is 38 km/h. Time tak...
Speed of boat in still water is 60% more than speed of current and total time takes by boat to cover certain distance going downstream and upstream is ...
The speed of current is 35 km/hr. If the speed of the boat in still water had been 10 km/hr more than the original speed then it would take 6.2 hours to...
- A boat sails 180 km downstream and half of that distance upstream in 12 hours. If the stream’s speed is 50% less than that of the boat in still water, de...
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