Question

One man can do a job for 6 days, but it takes another man 9 days to do the same job. How long would it take both man working togather to do the job?

Answer 1

Step-by-step explanation:

i think so 15

Yeah .....

Answer 2

Step-by-step explanation:

First man finish the work in 6 days

so work done in one day by the same =1/6

Second will do the same job in 9 days

so work done in one day by second one =1/9

both one days work while working together

= 1/6+1/9

=3+2/18

=5/18

hence it will take 18/5 days to finish the work by working together.