Problema Solution
Lisa can shovel snow from her driveway in 45 minutes. Bill can do the same job in 40 minutes. How long would it take Lisa and Bill to shovel the driveway if they worked together?
Answer provided by our tutors
Time of working together: x
So the equation is
1/x = 1/45 + 1/40
S0
x = 23.82 min
So time of working together: is 23.82 min