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ps from gmat club

by bblast » Thu Jan 13, 2011 7:23 am
If a circle is inscribed in a square, then the area outside the circle is what percent of the total area of the square (approximately)?

* 14%
* 18%
* 22%
* 28%
* 30%

[spoiler]OA C

if i take side of square 10 and r of circle 5 arrive at A. :x [/spoiler]
Cheers !!

Quant 47-Striving for 50
Verbal 34-Striving for 40

My gmat journey :
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by anshumishra » Thu Jan 13, 2011 7:40 am
bblast wrote:If a circle is inscribed in a square, then the area outside the circle is what percent of the total area of the square (approximately)?

* 14%
* 18%
* 22%
* 28%
* 30%

[spoiler]OA C

if i take side of square 10 and r of circle 5 arrive at A. :x [/spoiler]
Using your example,
area of square = 100
area of circle = pi*25 ~= 25*3.1 ~= 77.5

So, area outside square = 100-77.5 ~= 22.5 ~=22 C
Thanks
Anshu

(Every mistake is a lesson learned )
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by bblast » Thu Jan 13, 2011 8:08 am
anshumishra wrote:
bblast wrote:If a circle is inscribed in a square, then the area outside the circle is what percent of the total area of the square (approximately)?

* 14%
* 18%
* 22%
* 28%
* 30%

[spoiler]OA C

if i take side of square 10 and r of circle 5 arrive at A. :x [/spoiler]
Using your example,
area of square = 100
area of circle = pi*25 ~= 25*3.1 ~= 77.5

So, area outside square = 100-77.5 ~= 22.5 ~=22 C
thanks anshu, made a silly calc mistake, solving so many problems since past few hours, bound to happen :(
Cheers !!

Quant 47-Striving for 50
Verbal 34-Striving for 40

My gmat journey :
https://www.beatthegmat.com/710-bblast-s ... 90735.html
My take on the GMAT RC :
https://www.beatthegmat.com/ways-to-bbla ... 90808.html
How to prepare before your MBA:
https://www.youtube.com/watch?v=upz46D7 ... TWBZF14TKW_
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Posts: 543
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by anshumishra » Thu Jan 13, 2011 8:14 am
bblast wrote:
anshumishra wrote:
bblast wrote:If a circle is inscribed in a square, then the area outside the circle is what percent of the total area of the square (approximately)?

* 14%
* 18%
* 22%
* 28%
* 30%

[spoiler]OA C

if i take side of square 10 and r of circle 5 arrive at A. :x [/spoiler]
Using your example,
area of square = 100
area of circle = pi*25 ~= 25*3.1 ~= 77.5

So, area outside square = 100-77.5 ~= 22.5 ~=22 C
thanks anshu, made a silly calc mistake, solving so many problems since past few hours, bound to happen :(
Can't agree more. Take some break or read verbal in between.
Thanks
Anshu

(Every mistake is a lesson learned )
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