engineering recuitment NMC JE Civil Mock Test 2024 Quantitative Aptitude Time and Work Work Efficiency
To complete a certain task, X is 40% more efficient than Y, and Z is 40% less efficient than Y. Working together, they can complete the task in 21 days. Y and Z together worked for 35 days. The remaining work will be completed by X alone in:
1
4 days
2
8 days
3
5 days
4
6 days