Boat and stream
Hemant and Ajay start a two-length swimming race at the same moment but from opposite ends of the pool. They swim in lane and at uniform speed, but Hemant is faster than Ajay.They first pass at a point 18.5 m from the deep end and having completed one length, each one is allowed to rest on the edge for exactly 45 seconds.After setting off on the return length, the swimmers pass for the second time just 10.5 m from the shallow end.How long is the pool?
a.55.5m, b.45m, c.66m, d.49m.
Anyone please explain the procedure to solve the above problems.Thanks in advance.
Raju takes 4 hours less to row down a 12 km stream than he takes to row up, for this 24 km round trip, if he doubles his rowing speed, he would take half an hour less to row downstream than to row upstream. Find the speed of the stream in km/hr?
A man wishes to cross a river perpendicularly. In still water he takes 4 minutes to cross the river , but in flowing river he takes 5 minutes. If the river is 100 meters wide , the velocity of the flowing water of the river is?
Two kayak racing champions Santa and Banta challenge each other to a 12 km downstream kayak race. Santa rows downstream at 6kmph whereas Banta rows the same stretch at 4 kmph. They start at the same time from the same place but at one point, Santa loses his paddle and if forced to complete the remaining part of his race at half the initial speed. If he loses the race by 12 mins, how many kms from the end did he lose the paddle?