GMAT Paper Tests
A rectangular-shaped carpet remnant that measures x feet by y feet is priced at $50. What is the cost of the carpet, in dollars per square yard? (9 square feet = 1 square yard)
A. 50xy
B. 450xy
C. xy/9
D. xy/50
E. 450/(xy)
OA E
A rectangular-shaped carpet remnant that measures x feet by y feet is priced at $50. What is the cost of the carpet...
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Solution:
We are given that a rectangular-shaped carpet remnant that measures x feet by y feet is priced at $50. We need to determine the cost, in dollars per square yard.
The area of the carpet is xy square feet, and we have to convert that value to square yards.
(xy square feet) x (1 square yard/9 square feet) = xy / 9 square yards
The cost of the carpet, in dollars per square yard, is 50 / (xy/9) = 450 / (xy).
Answer: E
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