engineering recuitment PGCIL Junior Technician Trainee (Electrician) Mock Test 2023 Quantitative Aptitude Time and Work Pipe and Cistern
A pipe can fill a cistern in 12 hours and another pipe can fill it in 15 hours. If both the pipes are opened simultaneously, then how much time will be taken to fill the tank halfway?
1
\(4 \frac{2}{3}\) hours
2
\(3 \frac{1}{3}\) hours
3
\(6 \frac{2}{3}\) hours
4
\(2 \frac{1}{3}\) hours