Warning: implode(): Invalid arguments passed in /www/wwwroot/jobquiz.info/mdiscuss.php on line 336 The speed of a boat in still water is 15 km/hr.It can go 30 km upstream and return down stream to the original point in 4 hrs and 30 minutes.Find the speed of the stream ?->(Show Answer!)
1. The speed of a boat in still water is 15 km/hr.It can go 30 km upstream and return down stream to the original point in 4 hrs and 30 minutes.Find the speed of the stream