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Teenaged Indian Grandmaster R Praggnanandhaa defeated world no.1 Magnus Carlsen, in the eighth round of the Airthings Masters online rapid chess tournament, becoming only the third from the country to clinch a victory over the Norwegian. R Praggnanandhaa belongs to Tamil Nadu . The 16-year old prodigy followed five-time former world champion Viswanathan Anand and P Harikrishna in getting the better of Carlsen, the 31-year-old who is also the reigning world champion.
A boat covers 36 km downstream in 2 hours, and it takes 3 hours to cover the same distance upstream. What is the speed of the current?
A boat covers 45 km downstream in 2 h and the same distance upstream in 10 h. Find the speed (in km/h) of the boat in still water.
Speed of a boat in still water is 5 times more than the speed of stream. If boat covers 147 km in downstream in 7 hours, then find the time taken by the...
A boat running downstream covers a distance of 45 km in 9 hrs and covering the same distance upstream in 15 hrs. What is the speed of a boat in still wa...
A boat takes half the time to move a certain distance downstream than upstream. the ratio of the boat's speed in still water and that of the current is.
A car has to cover a distance of 240 km in 30 hours. If it covers half of the journey in 3/5 th of the time, the speed to cover the remainin...
The speed of boat downstream and upstream is 36 km/hr and 26 km/hr respectively. Time taken to travel a distance of (k + 60) km downstream and (l + 40) ...
A boy can swim a certain distance downstream in 3 hours and return in 5 hours. If the rate of stream is 6 kmph then what is the speed of boy in still wa...
Two boats A and B start towards each other from two places, 600 km apart. Speed of the boat A and B in still water are 23 km/h and 17 km/h respectively....
Speed of a boat in still water to speed of boat in upstream is 11:7. If the boat can travel 300 km in downstream in 5 hours, then find the time taken by...
