defence exam CISF Head Constable Ministerial (HCM) & ASI Steno Mock Test Series Quantitative Aptitude Time and Work Pipe and Cistern
A boy and girl work together to fill a cistern. The boy pours 3 liters every 4 minutes and the girl pours 4 liters every 3 minutes. Find the time taken by them to fill 100 liters?
1
48 min
2
36 min
3
40 min
4
52 min