Problema Solution
it takes 1.5 hours for Tim to mow the lawn. Linda can mow the same lawn in 2hours. How long will it take Tim and Linda, working together to mow the lawn.?
Answer provided by our tutors
Let 'x' represent the number of hours that Tim and Linda need to mow the lawn together, x>0
1/x lawn per hour is the together rate
1/1.5 lawn per hour is Tim's rate
1/2 lawn per hour is Linda's rate
1/1.5 + 1/2 = 1/x
........
........
x = 6/7 hr
x = 6*60/7 min
x = 51.43 min
It will take 51.43 min for Tim and Linda to mow the lawn together.