Question

a and b can do a piece of work in 6 days and 12 days respectively they both will complete the work in how many days ​

Answer 1

Answer:

in one day A does 1/6 part of work

in one day B does 1/12 part of work

in one day (A+B)does (1/6+1/12),part of work

=1/4part of work

so,(A+B) do the work in 4days