Question

150 workers ware engaged to finish a piece of work in a certain number of days. Four workers dropped from the work in the second day. Four workers dropped in third day and so on. It took 8 more days to finish the work. Find the number of days in which the was and completed.

Answer 1

8 more days after the 3rd day? Or just 8 more days?
If workers quit for 8 straight days, then the job was finished on day 10

not sure just what "the was and completed" means