engineering recuitment Vizag Steel MT Mechanical 2020 Test Series Quantitative Aptitude Time and Work Pipe and Cistern
Pipe A alone can fill a tank in 8 hours. Pipe B alone can fill in 6 hours. If both the pipes are opened and after 2 hours pipe A is closed, then the other pipe will fill the tank in
1
6 hours
2
\(3\frac{1}{2}\)hours
3
4 hours
4
\(2\frac{1}{2}\)hours