SSC CHSL 2 July 2019 Shift 2 Paper

Question : 59 of 100

Marks: +1, -0

A, B and C can finish a task in 42 days, 84 days and 28 days, respectively. A started the work. B joined him after 3 days. If C joined them after 5 days from the beginning, then for how many days did A work till the completion of the task?