Question

(e) None of these
7. Two persons A and B can complete a piece of
work in 8 hours and 16 hours respectively. If
they work at it alternately for an hour, A starting
first, in how many hours will the work be
finished?
hours
(a) 9
(c) 11
hours
hours
(b) 10 hours
(d) 8+ hours
hours
(e) None of these​

Answer 1

Answer:

(e) None of these

answer is after 16 hours

Answer 2

Answer:

e) none of these is the correct answer