Question

A plumber and an assistant finished a job in 4 hours, The job would have taken the plumber 6 h working alone. How long would the job have taken the assistant working alone?

Answer 1

Is this for math or econ?

Answer 2

math

Answer 3

how many more hours would it have taken just the plumber?

Answer 4

plumbers rate is \[\frac{1}{6}\] per hour
combined rate is \[\frac{1}{4}\] per hour
so assistants rate is
\[\frac{1}{4}-\frac{1}{6}\] per hour

Answer 5

the work, please.