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ets paper test test code 42 #9

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ets paper test test code 42 #9

by wawatan » Sat Jun 07, 2008 4:21 pm
A rectangular shaped carpet remnant that measures x feet by y feet is priced at 50 dollars. What is the cost of the carpet, in dollars per square yard? ( 9 square feet = 1 square yard)

50xy
450xy
xy/9
xy/50
450/xy

oa is E
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E is Indeed correct answer :-)

by albertrahul » Sun Jun 08, 2008 11:23 pm
Let Length (x) be 20 and Width (Y) be 5

And cost equals 50.

So price per square foot equals

Cost/Total Area i.e. L*B = 20*5 = 100

X*Y = 20*5 = 50/100 = .5/sq ft

To get price per yard
50*9/XY


Hope this helps!
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by VerbalAttack » Sun Jun 08, 2008 11:43 pm
Hi wawatan,

A simple technique may solve this problem more easily;

Carpet area = XYsqft

If the area XYsqft costs $50?
how much 9sqft costs ?

= (9/XY)*50 = 450/XY


If X ==> Y,
and A ==> B.

then B = (A/X)*Y
Cheers
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