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A rectangular room has dimensions of the four walls as " x "

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A rectangular room has dimensions of the four walls as " x " [#permalink] New post 19 Aug 2013, 02:09
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A rectangular room has dimensions of the four walls as " x " meters in height and "y" meters in length . What will be the number of square tiles that can cover the entire floor if each square tile is of 2 sq. meters in area.

1) X=10 meters

2) Y= 8 meters
[Reveal] Spoiler: OA
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Re: A rectangular room has dimensions of the four walls as " x " [#permalink] New post 19 Aug 2013, 04:39
innocous wrote:
A rectangular room has dimensions of the four walls as " x " meters in height and "y" meters in length . What will be the number of square tiles that can cover the entire floor if each square tile is of 2 sq. meters in area.

1) X=10 meters

2) Y= 8 meters



given,

length = width = Y


question is asking sqaure tiles required to cover entire floor which is Y^2.

So B is sufficient
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Re: A rectangular room has dimensions of the four walls as " x " [#permalink] New post 21 Aug 2013, 15:26
maaadhu wrote:
innocous wrote:
A rectangular room has dimensions of the four walls as " x " meters in height and "y" meters in length . What will be the number of square tiles that can cover the entire floor if each square tile is of 2 sq. meters in area.

1) X=10 meters

2) Y= 8 meters



given,

length = width = Y


question is asking sqaure tiles required to cover entire floor which is Y^2.

So B is sufficient


How we are interpreting that length = width ??

thanks
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Re: A rectangular room has dimensions of the four walls as " x " [#permalink] New post 22 Aug 2013, 04:06
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blueseas wrote:
maaadhu wrote:
innocous wrote:
A rectangular room has dimensions of the four walls as " x " meters in height and "y" meters in length . What will be the number of square tiles that can cover the entire floor if each square tile is of 2 sq. meters in area.

1) X=10 meters

2) Y= 8 meters



given,

length = width = Y


question is asking sqaure tiles required to cover entire floor which is Y^2.

So B is sufficient


How we are interpreting that length = width ??

thanks


Notice that we are told that each of the four walls is x meters in height and y meters in length. so the base is a square with the side of y:
Attachment:
Rectangular.jpg
Rectangular.jpg [ 25.4 KiB | Viewed 647 times ]
Hope it's clear.
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Re: A rectangular room has dimensions of the four walls as " x " [#permalink] New post 11 May 2014, 06:56
[/quote]

Notice that we are told that each of the four walls is x meters in height and y meters in length. so the base is a square with the side of y:
Attachment:
Rectangular.jpg
Hope it's clear.[/quote]

B,

How do you imply from the problem that length = width?

Thanks
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Re: A rectangular room has dimensions of the four walls as " x " [#permalink] New post 11 May 2014, 08:41
I can't even say how much I hate these trick questions ... what's next? "What is heavier - 1 kilo of stone or 1000 gram of feathers"?

Of course I did it wrong ... :D
Re: A rectangular room has dimensions of the four walls as " x "   [#permalink] 11 May 2014, 08:41
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