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Typhoid is caused by bacteria, not a virus. Hence, the incorrect pair is Typhoid - Virus - Water.
A boat takes 1/12th time in moving a certain distance downstream than upstream. The ratio of the speed of the boat in still water and that of the curren...
Speed of a boat in still water to speed of boat in upstream is 11: 9. If the boat can travel 260 km in downstream in 10 hours, then find the time taken ...
The speed of a boat in still water is 40 km/hr. If the boat covers 360 km in upstream in 12 hours, then find the time taken by the boat to travel 150 km...
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...
A man can row 5 km/hr in still water. If the speed of the current is 2 km/hr, it takes 4 hours more in upstream than in the downstream for the same dist...
Ratio of speed of boat in downstream and speed of stream is 7:3, if speed of current is 9 km/hr, then find distance travelled (in km) upstream in 6 hours.
A boat is navigating a river with a current speed of 2 km/h. It takes the boat 75 minutes longer to cover a distance of 56 km upstream than it does to c...
The speed of the stream is 12 km/h. Boat ‘A’ covers 100 km distance against the stream in 5 hours and boat ‘B’ covers 80 km distance against the...
Arjun covers a distance of 96 km downstream and then returns the same distance upstream, completing the entire journey in 7 hours. Given that the speed ...
A boat takes 7 hours to cover 259 km upstream and 9 hours to cover 477 km downstream. Find the time taken by the boat to cover 645 km upstream and 660 k...
