<PRE><B>Question 256018</B>
he has to paint 4 walls.


each wall is 10 feet by 15 feet.


the area of each wall is therefore 10 * 15 = 150 square feet.


4 * 150 = 600 square feet.


the window is 3 feet by 5 feet = 15 square feet.


the door is 3 feet by 7 feet = 21 square feet.


since these do not need to be painted, he subtracts them from the total square feet that have to be painted to get:


600 - 15 - 21 = 600 - 36 = 564 square feet.


the maximum coverage for each can is 350 square feet.


564 / 350 = 1.62.... which means he will need at least 2 cans.


the minimum coverage for each can is 300 square feet.


564 / 300 = 1.88 which means he will still need at least 2 cans.


he has to get 2 cans of paint either way.


answer is selection b.








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