SOLUTION: erin is buying floor tile to put in a room 10ft. x 15ft. she has chosen tiles that are 18in. by 18in. how many tiles will she need?

Question 1072450: erin is buying floor tile to put in a room 10ft. x 15ft. she has chosen tiles that are 18in. by 18in. how many tiles will she need?
Found 2 solutions by josgarithmetic, Alan3354:
Answer by josgarithmetic(39617) (Show Source): You can put this solution on YOUR website!

May need to buy 67 tiles.
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
erin is buying floor tile to put in a room 10ft. x 15ft. she has chosen tiles that are 18in. by 18in. how many tiles will she need?
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10' by 15' = 120" by 180"
60 of the 18 by 18 tiles can cover 108" by 180"
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Then a gap of 12" by 180" is left.
If the tiles are cut to 12" by 18" you get 2 pieces, one 12 by 18 & one 6 by 18.
--> 2 tiles fill 3 spaces
10 spaces are to be filled --> 6 entire tiles & 1 tile with some scrap.
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Total = 67 tiles
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If the tiles have a pattern, using 2 cut pieces might not work --> 70 tiles.
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