Question

a can do a piece of work in 6 days and B can do the same work in 12 days both of them working together will finish it in​

Answer 1

Days taken by A to complete work=6 days.

Work done in one day=1/6

Now, days took by B to complete a work=12

Work done in one day=1/12

Together work done in one day=1/6+1/12

=1/4

Days required by both of them to complete the work is, therefore, 4 days