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Firewalls are used to block unauthorized access to your system from external networks, enhancing security.
A person rows 300 km against the current in 5 hours and travels 540 km along the current in 6 hours. How much time will he take to row 660 km in still w...
Speed of a boat in still water is 3 times more than the speed of stream. If boat covers 135 km in downstream in 9 hours, then find the time taken by the...
Two boats X and Y start towards each other from two places, 76 km apart. Speed of the boat X and Y in still water are 8 km/hr and 11 km/hr respectively....
A boat racer can row 45/2km/h in still water. If the speed of river is 12.5 km/h, it takes him 40 minutes to row to a place and back, how far off is the...
A boat can cover 40 km upstream and 60 km downstream in 13 hour. Also it can cover 50 km upstream and 72 km downstream in 16 hour. Find the speed of boa...
A boat can travel 80 km downstream in 4 hours and the same distance upstream in 8 hours. If the speed of the boat in still water is increased by 50%, ho...
Boat ‘A’ can cover 160 km in still water in 8 hours. In still water, if the ratio of the speed of boat ‘A’ to that of ‘B’ is 4:3 and the spe...
A boat can cover 220 km in downstream in 10 hours and 170 km in upstream in 17 hours. Find the distance travelled by the boat in still water in 5 hours.
In still water, a boat can cover 30 km in 90 minutes. Speed of the stream is 20% of the speed of the boat in downstream. Find the time taken by the boat...
A man can row his boat with the stream at 42 km/h and against the stream in 7 km/hours. The man’s rate is