state gov Bihar Police Prohibition Constable 2022 Mock Test Series Quantitative Aptitude Time and Work Work Efficiency
X, Y and Z can complete a piece of work in 8, 20 and 25 days respectively. Working together, they will complete the same work in:
1
\(\frac{{180}}{{43}}\) days
2
\(\frac{{162}}{{43}}\) days
3
\(\frac{{200}}{{43}}\) days
4
\(\frac{{172}}{{43}}\) days