A pipe can fill a cistern in 20 minutes whereas the cistern when fill can be emptied by a leak in 28 minutes. When both pipes are opened, find when the cistern will be full? December 31, 2021December 31, 2021 administrator A. 60 minB. 80 minC. 70 minD. 48 minCheck AnswerC. 70 min Share the PostRelated Posts:pipes P and Q would fill a cistern 18 and 24 minutes…A cistern has a leak which would empty the cistern…A tank is filled by three pipes with uniform flow.…One pipe can fill a tank three times as fast as…A cistern is filled by a tap in 3 1/2 hours. Due to…Pipe A can fill a tank in 6 hours. Due to a leak at…