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World first super rice variety for saline/alkaline soil: Lunishree. It requires the minimal use of fertilisers, has a high resistance to salinity and a long grain.
The ratio of the speed of boat in upstream to speed of boat in downstream is 7:9. If the boat can cover a total of 70 km upstream and 144 km downstream ...
A boy can swim in water with a speed of 10 km/hr in still water. If the speed of the stream is 4 km/hr, what will be the time taken by the boy to cover ...
Speed of a boat in still water is three times the speed of the boat in upstream. If the boat takes 20 minutes to cover 15 km in downstream, then find th...
A man can row 25/2 km an hour in still water and he finds that it takes him thrice as long to row up as to row down the river. The rate of stream is:
Speed of a boat in still water to speed of boat in upstream is 13:10. If the boat can travel 320 km in downstream in 5 hours, then find the time taken b...
Ratio of speed of boat in downstream and speed of stream is 5:3, if speed of current is 9 km/hr, then find distance travelled (in km) upstream in 8 hours.
The speed of a boat is that of the current of water is 40:3. The boat goes along with the current in 3 hours 8 minutes. It will come back in
A swimmer swims from a point A against a current for 12 minutes and then swims backwards in favour of the current fornext 12 minutes and comes to the po...
A boy can swim in water with a speed of 14 km/hr in still water. If the speed of the stream is 6 km/hr, what will be the time taken by the boy to cover ...
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...
