Pipe A can fill the tank in 4 hours, while pipe B can fill it in ’6 hours working separately. Pipe C can empty whole the tank in 4 hours. He opened the pipe A and B simultaneously to fill the empty tank. He wanted to adjust his alarm so that he could open the -pipe C when it was half-filled, but he mistakenely adjusted his alarm at a time when his tank would be 3//4 th filled. What is the time difference between both the cases, to fill, the tank fully

Pipe A can fill the tank in 4 hours, while pipe B can fill it in ’6

1.	Pipe A can fill the tank in 4 hours, while pipe B can fill it in ’6 hours working separately. Pipe C can empty whole the tank in 4 hours. He opened the pipe A and B simultaneously to fill the empty tank. He wanted to adjust his alarm so that he could open the -pipe C when it was half-filled, but he mistakenely adjusted his alarm at a time when his tank would be 3//4 th filled. What is the time difference between both the cases, to fill, the tank fully
Answer» 48 min 54 min 30 min none of these Answer :B