railway RPF SI Mock Test Series 2024 Quantitative Aptitude Time and Work

A can do a piece of work in 12 days and B can do the same work in 15 days. If both do the work together, then in how many days will the work be completed?

1
7\(\frac{2}{3}\)
2
6\(\frac{2}{3}\)
3
5\(\frac{2}{3}\)
4
8\(\frac{2}{3}\)
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