8 * 6 + 1 = 49 11 * 6 + 1 = 67 Similarly, 9 * 6 + 1 = 55
Speed of boat is 20 km/hr. Speed of the stream is 20% less than speed of boat. Then find time taken by boat to go 72 km downstream?
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...
Speed of a boat in still water to speed of boat in upstream is 8: 7. If the boat can travel 450 km in downstream in 10 hours, then find the time taken b...
A boy can swim a certain distance downstream in 2 hours and return in 5 hours. If the rate of stream is 3 kmph then what is the speed of boy in still wa...
A submarine can navigate 112 km upstream and 130 km downstream, and it takes a total of 8 hours and 6 minutes to complete this journey. Now, the task is...
The ratio of the speed of boat ‘A’ in still water, the speed of boat ‘B’ in still water and the speed of the current is 7:4:2, respectively. If ...
The total time taken by a boat to cover (d+30) km in downstream and (d-60) km in upstream is (t+3) hours. The speed of stream is one fourth of the speed...
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...
The ratio of the speed of boat ‘A’ in still water, the speed of boat ‘B’ in still water and the speed of the current is 11:5:2, respectively. If...
A boat can cover 120 km in downstream in 12 hours and 100 km in upstream in 10 hours. Find the distance travelled by the boat in still water in 5 hours.
