Reverse resistance is resistance through which a weed species resistant to a herbicide fall susceptible to the same herbicide if not used for a period of 7-10 years.
A man rows upstream 10 km and downstream 15 km taking 5 hours each. Find the speed of current.
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The speed of current is 8 km/h. What will be the respective downstream speed and upstream speed of a boy rowing a boat, if one fifth of the distance cov...
The speed of current is 30 km/hr. If the speed of the boat in still water had been 13 km/hr more than the original speed then it would take 7.5 hours to...
Find the total distance covered by boat in each upstream and downstream in 4 hours if the speed of boat in still water and speed of current is 15 km/h a...
(√3364+ √484) – √2916÷ √1296 × √36 ÷ √64 = ?
A boat running downstream covers a distance of 56 km in 7 hrs and covering the same distance upstream in 14 hrs. What is the speed of a boat in still wa...
Find the total distance covered by boat in each upstream and downstream in 6 hours if the speed of boat in still water and speed of current is 20 km/h ...
The speed of a boat in still water is 5 times the speed of the stream. If the difference between the upstream and downstream speed of the boats is 24 km...
A man rows to a place 35 km in distance and back in 10 hours 30 minutes. He found that he could row 5 km with the stream at the same time as he could go...
A boat travels faster than the stream by 28 km/h. It covers a distance of 112 km upstream and returns 132 km downstream, all within 7 hours. Calculate t...
