SOLUTION: brooks can move a lawn in 4 hours jeremy could move the same lawn twice as fast. how long would it take working together?
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Question 597852: brooks can move a lawn in 4 hours jeremy could move the same lawn twice as fast. how long would it take working together? Answer by w_parminder(53) (Show Source):
You can put this solution on YOUR website! Let they both complete the job in X hrs
Jeremy can do the work twice as fast as Brook,
So time taken by Jeremy will be HALF than that of Brook
Time taken by Brook = 4hrs
So Work rate of Brook = 1/4
Time taken by Jeremy = 2 hrs
So Work rate of Jeremy = 1/2
So X = 4/3 Hrs,i.e. 1 Hour & 20 Minutes
So when the work together, they complete the job in 1 Hour & 20 Minutes
