railway DFCCIL Junior Executive 2023 (CBT 1 & CBT 2) Mock Test Quantitative Aptitude Time and Work Work Efficiency
B and C alone can complete a piece of work in 5 days and 15 days respectively. They started the work together but after a few days B left the work and C alone completed the remaining work in 3 days. After how many days from the beginning did B leave the job?
1
1.5 days
2
3 days
3
5 days
4
4 days