Question

A and B together can do a piece of work in 12 days, while B also
can finish it in 30 days. In how many days can A finish the work?​

Answer 1

Step-by-step explanation:

A’s 1 day’s work = 1/12-1/30=5-2/60=3/60=1/20

So, A alone will complete the work in 20 days.

Answer 2

Answer:

the answer is 20 days

because A and B work 1 in 1 day

so A do 12 days -B one day work and then you ÷ the ans with 1....