Warning: implode(): Invalid arguments passed in /www/wwwroot/jobquiz.info/mdiscuss.php on line 336 Two pipes A and B can fill a tank in 20 and 30 minutes respectively.If both the pipes are used together,then how long will it take to fill the tank? ?->(Show Answer!)
1. Two pipes A and B can fill a tank in 20 and 30 minutes respectively.If both the pipes are used together,then how long will it take to fill the tank?