Number Systemseasy
0:00.0
If Pipe A fills a tank in hours and Pipe B fills it in hours, how long does it take for both to fill it?
If Pipe A fills a tank in hours and Pipe B fills it in hours, how long does it take for both to fill it?
If Pipe A fills a tank in hours and Pipe B fills it in hours, how long does it take for both to fill it?