SSC Delhi Police Head Constable (Ministerial) 2025 Mock Test (New) Quantitative Aptitude Time and Work Pipe and Cistern
Two pipes can fill a tank in 20 hours and 90 hours, respectively. The time (in hours) required to fill the tank when both pipes are opened simultaneously is:
1
\(\frac{177}{13}\)
2
\(\frac{179}{9}\)
3
\(\frac{180}{11}\)
4
\(\frac{183}{8}\)