Question
Who wrote the famous book 'A Brief History of
Time'?Solution
'A Brief History of Time' was written by physicist Stephen Hawking, exploring concepts of cosmology for a general audience.
If a man rows 8km downstream in 6 hours and 4km upstream in 4 hours, then how long will it take him to cover 14km in still water?
If a boat travels 18 km more in downstream than in upstream in 3 hours and if the speed of the Boat in still water is 20 kmph. Find the distance tra...
The speed of the boat in still water is ‘y’ % more than the speed of the boat in upstream. The time taken by the boat to cover (2d+50) km distance i...
Speed of boat is 20 km/hr. Speed of the stream is 15% less than speed of boat. Then find time taken by boat to go 74 km downstream?
A boat covers a distance of 338 km upstream in 13 hours. After rain, the speed of the stream increases by 50%, and the speed of t...
Motor boat covers a certain distance downstream in 5 hours. It covers the same distance upstream in 7(1/2) hour. If the speed of the water is 4.5 km/hr,...
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 ...
Speed of boat is 10 km/hr. Speed of the stream is 20% less than speed of boat. Then find time taken by boat to go 90 km downstream?
- The speed of boat ‘M’ in still water is double the speed of boat ‘N’. The two boats are 360 km apart on a river and move towards each other at the ...
A boat takes 14 hours to travel downstream from point P to point Q and then return to point R, which is located halfway between P and Q. If the speed of...
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