SOLUTION: Keith is lining both sides of his 27- foot driveway with low-wattage lamps. He plans to install one at each end and place one every three feet. How many lamps should he buy?

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Question 223875: Keith is lining both sides of his 27- foot driveway with low-wattage lamps. He plans to install one at each end and place one every three feet. How many lamps should he buy?
Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
27/3+1=9+1=10 The 1 added is for the first lamp.