A pipe can fill a cistern in 45 minutes. To fill 1/3rd of the cistern it require May 24, 2022 by admin โช Choose the correct option.A pipe can fill a cistern in 45 minutes. To fill 1/3rd of the cistern it requires:A. 18 minutesB. 12 minutesC. 30 minutesD. 15 minutes Submit Answer