defence exam Agniveer Army Tradesman Mock Test Series 2025 Quantitative Aptitude Time and Work Pipe and Cistern
Pipe A can fill an empty cistern in 14 hours. Together with Pipe B it can fill up the empty cistern in 12 hours. Therefore, Pipe B can fill the empty cistern alone in _______ hours.
1
75
2
77
3
78
4
84