P (getting a prize) = 12/(12 + 33) = 12/45 = 4/15.
A boat running downstream covers a distance of 56 km in 7 hrs and covering the same distance upstream in 14 hrs. What is the speed of a boat in still wa...
A boat's speed in still water is 50% greater than the speed of a stream, which flows at 12 km/h. Calculate the total time it takes for the boat to cover...
Two boats X and Y start towards each other from two places, 198 km apart. Speed of the boat X and Y in still water are 15 km/hr and 18 km/hr respectivel...
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...
Motor boat covers a certain distance downstream in a river in 5 hours. It covers the same distance upstream in 7 and half an hour. If the speed of the w...
A boy can swim a certain distance downstream in 5 hours and return in 7 hours. If the rate of stream is 3 kmph then what is the speed of boy in still wa...
Sita can row 8 km/hr in still water. If it takes her three times as long to row up a river as it does to row down the same distance, find the speed of t...
"A boat covers 66 km upstream and 98 km downstream in a total of 9 hours. Determine the time required for the boat to travel 48 k...
The speed of the current is 80% lower than the boat's speed in still water. The boat covers 120 km in still water in 8 hours. How long will it take for ...
What is the speed of boat in still water?
Statement I: It takes the boat thrice as much time to row up than as to row down the same distance in...
