Question

Six technicians working at the same rate complete
the work of one server in 2.5 hrs. If one of them
starts at 11:00 a.m. and one additional technician per
hour is added beginning at 5:00 p.m., at what time
the server will be complete?
(a) 6:40 p.m,
(b) 7 p.m.
(c) 7:20 p.m.
(d) 8:00 p.m.​

Answer 1

Answer:

I think (d) is correct answer