state gov UP Police SI (दरोगा) Mock Test Series 2025 Quantitative Aptitude Time and Work Work Efficiency
X can finish a work in 153 days, Y can finish a work in 255 and Z can finish the same piece of work 340 days. How many days will they require to complete the work, if X, Y and Z are working together?
1
70\(\frac {26} {41}\)
2
74\(\frac {26} {41}\)
3
76\(\frac {26} {41}\)
4
72\(\frac {26} {41}\)