engineering recuitment NMDC Maintenance Assistant Fitter 2021 Mock Test Quantitative Aptitude Time and Work Pipe and Cistern
A tap can fill a container in 9 hours. Due to a leakage in its bottom, the container fills up in 10 hours. If the container is full, then in how much time the container will be emptied by the leakage?
1
70 hrs
2
80 hrs
3
90 hrs
4
100 hrs