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Biofertilizers are biological preparations of efficient microorganisms that promote plant growth by improving nutrient acquisition. They enhance soil productivity by fixing atmospheric nitrogen, solubilizing soil phosphorus, and stimulating plant growth.
A boat is traveling downstream along a river at a speed of 60 km/h. After covering half the total distance, the speed of the river's current increases b...
A boat has a speed of 30 km/h in still water. When the boat travels downstream in a stream, its speed increases by 50% compared to when it moves upstre...
A boat, whose speed in still water is 25% more than the speed of the current, covers 315 km downstream in _____ hours. The speed of the boat in still w...
The speed ratio of a stream to the upstream speed of a boat is 1:9. A boat takes 2 hours and 30 minutes to travel 82.5 km downstream. Determine the time...
A man can row 16 km/hr in still water. It takes him thrice as long to row up as to row down the river. Find the speed of the man against the current.
A boat covers a distance of 57 km upstream in 9.5 hours. If the boat's speed in still water had been doubled, it would have taken only 2 hours to cover...
A boatman covers 192 km upstream in 4 hours and 288 km downstream in 4 hours. Find the time taken by the boatman to cover 240 km in still water.
A man can row 8 km/hr in still water. If the speed of the current is 2 km/hr, it takes 5 hours more in upstream than in the downstream for the same dist...
The speed of a boat in still water is 8 km/hr and the speed of the stream is 2 km/hr. A man rows to a place at a distance of 30 km and comes back to the...
Ratio of speed of boat in downstream and speed of stream is 9:5, if speed of current is 10 km/hr, then find distance travelled (in km) upstream in 6 hours.
