working together,dan julio can mow a lawn in 12minutes, julio can mow the lawn by himself in 10 minutes less timethen it takes dan by himself. how longdoes it take each of hem to mow the lawn alone?
|
Rate |
Time |
Job completed
|
Dan |
1/d |
d |
1 |
julio |
1/10-d |
10-d |
1 |
together |
1/12 |
12 |
1 |