Civil Services TNPSC Group 1 (New Syllabus) Mock Test 2025 Quantitative Aptitude Time and Work Pipe and Cistern
Two pipes can fill a tank in 25 hours and 35 hours, respectively. The time (in hours) required to fill the tank when both pipes are opened simultaneously is:
1
\(165\over14\)
2
\(175\over14\)
3
\(175\over12\)
4
\(165\over12\)