i have done B.Tech. (ME) 2016 batch passed out. i am working in a company. I can give 2 hours every day for further work. Please get me placed in some extra work for extra money, or get me placed in a "easy and useful" learning course.

Question : A and B complete a work in 24 and 30 days, respectively, working 10 hours per day. The work is to be done in two shifts. The morning shift is for 6 hours and the evening shift is for 4 hours. On the first day, A works in the morning and B works in the evening, and they interchange their shifts every day. On which day did the work get completed?

Option 1: 21st day

Option 2: 24th day

Option 3: 30th day

Option 4: 27th day

Question : Rama alone can do a work in 5 days working 4 hours a day. Seema alone can do the same work in 3 days working 10 hours a day. How many hours do they need to work together in a day to complete the same work in 6 days?

Option 1: 1 hour

Option 2: 3 hours

Option 3: 5 hours

Option 4: 2 hours