other govt exam India Post Postman & Mail Guard Mock Test 2020 Quantitative Aptitude Time and Work Pipe and Cistern
Half of the tank is filled by pipe A in 6 hours and one third of the tank is filled by another pipe B in 5 hours find the time taken by A and B together to fill the tank?
1
\(6\frac{2}{3}\) hours
2
\(6\frac{1}{3}\) hours
3
\(5\frac{2}{3}\) hours
4
\(5\frac{1}{3}\) hours