engineering recuitment AAI ATC Junior Executive 2025 Mock Test Series Quantitative Aptitude Time and Work Work Efficiency
S, T and U together can complete a work in 30 days. If the ratio of efficiency of S, T and U is 20 : 15 : 12 respectively, then in how many days U alone can complete the same work?
1
195/2
2
235/2
3
225/2
4
215/2