Question

A completes a work in 12 days and b complete the same work in 24 days. if both of them work together, then the number of days required to complete the work will be

Answer 1

A one day work= 1/12
B one day work = 1/24
so together they work, their one day work is= 1/12+1/24
                                                                      =1/8
so total number of days needed to complete work is 8 days