engineering recuitment NMDC Maintenance Assistant Fitter 2021 Mock Test Quantitative Aptitude Time and Work
It takes 6 workers a total of 10 hours to assemble a laptop, with each working at the same rate. If 6 workers start at 9 am, and one worker per hour is added beginning at 3 pm, at what time will the laptop be assembled?
1
5 pm
2
6 pm
3
7 pm
4
8 pm