Question

A can do a piece of work in 4 days and b can complete the same work in 12 days.What is the number of days required to do the same work together?

Answer 1

This work can be done together in 3Days

Answer 2

Answer: 3 days

Step-by-step explanation:

A can do a work in 4 days

Then A can do 1/4 work in one day

Similarly B can do the same work in 12 days

Then B can do 1/12 work in one day

Now , if A and B together do the same work than it will 1/4+1/12=3+1/12=1/3

Thus together A and B can complete the work in 3 days