Question

24. A can do a job in 20 days. He works for 5 days and finishes
1/4 of the total work. Then B comes and finishes the
remaining work in 15 days. How many days A and B together
will take to finish the job?
(a) 17.5 days
(b) 15 days
(c) 10 days
(d) None of these​

Answer 1

Answer:

(a) 17.5 days

is your answer dear