Question

A and B together can do a piece of work in 12 days; B and C together can do it in 15 days. If A is twice as good a workman as C, in how many days A alone will do the same work?​

Answer 1

Answer:

Yes can i know what is your doubt do you need the answer or the explanation , for answer i will attach it down below (All the best)

Step-by-step explanation:

Step-by-step explanation:

1/a+1/b=1/12

1/b+1/c=1/15

given 2a=c

put the value of c in eqn 2 we get

1/b+1/2a=1/15

then solve the eqn 1 & eqn 3 we get

a=30 b=20 c 60 ans is 20 days alone finish the work