SSC NTA Delhi University Non-Teaching 2021 Mock Test Quantitative Aptitude Time and Work Work Efficiency
A and B can do a piece of work in 7 days and 8 days respectively. If they work for alternatively, A starting first, then Approximately in how many days will the work be completed?
1
7.5 days
2
6.5 days
3
6 days
4
7 days