Two inlet pipes A and B can fill an empty cistern in 22 and 33 hours, respectively. They are switched on together but Pipe B had to be closed for 7 hours the cistern was full. How many hours in all did it take pipes to fill the cistern?
Two inlet pipes A and B can fill an empty cistern in 22 and 33 hours, respectively. They are switched on together but Pipe B had to be closed for 7 hours the cistern was full. How many hours in all did it take pipes to fill the cistern?
Type I
Two inlet pipes A and B can fill an empty cistern in 22 and 33 hours, respectively. They are switched on together but Pipe B had to be closed for 7 hours the cistern was full. How many hours in all did it take pipes to fill the cistern?
Answer:
https://youtu.be/IZIIVhbgtOo