Question

9. A and B can do a given piece of work in 8 days; B and C can do the same work in 12 days and A, B, C
complete it in 6 days. In how many days can A and C finish it?​

Answer 1

Answer:

24days

Step-by-step explanation:

A+B 's one day work= 1/8

B+C 's one day work=1/12

A+B+C 's one day work=1/6

then A+2B+C 's one day work=1/8+1/12

=5/24

A+C 's one day work=A+2B+C 's one day work - A+B+C 's one day work

=5/24 - 1/6

=1/24

A+C can complete the work in 24 days