railway RRB NTPC Mock Test Series 2024-25 (CBT 1 + CBT 2) Quantitative Aptitude Time and Work Work Efficiency
Krishna and Ajay can do a work together in 12 days. If Krishna is thrice as efficient as Ajay, in how many days will Ajay do the job alone?
1
40 days
2
25 days
3
48 days
4
35 days