Teaching BPSC बिहार मध्य विद्यालय (6 to 8) शिक्षक भर्ती 4.0 Mock Test Quantitative Aptitude Time and Work Pipe and Cistern
If 3/7th of a cistern is filled in 36 minute, then what is the time (in minutes) needed to fill the remaining part?
1
48
2
42
3
44
4
More than one of the above
5
None of the above