Question 1107812: A farmer ploughs all his land in six days with 2 tractors. How many days will it take him with 3 tractors? Answer by addingup(3677) (Show Source):
You can put this solution on YOUR website! so the rate for each tractor is 1/2 of 6 days per tractor. One tractor alone would take 6*2 = 12 days
Three tractors:
12/3 = 4 days
