Question 1: Problem solving (Show your calculation/steps)
1. Farid can complete a job in 12 hours, and Jibon can complete the same job in 8 hours. Farid starts the job at 9 a.m and stops working at 3p.m. If Jibon starts working at 4 p.m to complete the remaining job, at what time is the job finished?[EXIM Bank Officer(Cash)-2011 : 2011]