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fiendex
  (90-8(20:4))/(1/2) [#permalink]
New postPosted: Tue Feb 07, 2012 2:59 am 
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(90-8(20:4))/(1/2)

A) 25
B) 50
C) 100
D) 116
E) 170
[Reveal] Spoiler: OA
C

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GyanOne
  Re: (90-8(20:4))/(1/2) [#permalink]
New postPosted: Tue Feb 07, 2012 3:05 am 
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Kudos (?): 85 (0), given: 7
= (90 - 2*20)/(1/2)
= 50 * 2
= 100

Option (C)

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liko21
  Re: (90-8(20:4))/(1/2) [#permalink]
New postPosted: Tue Apr 03, 2012 6:21 am 
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Kudos (?): 6 (0), given: 0
step one: 20/4=5
step two: 8*5=40
step three:90-40=50

step four:option A (retain the fraction)=50/(1/2)=>(50/1)/(1/2)=>100/1=>100

option B (transform fraction to decimal)=1/2=0.5 so we have...50/0,5=>500/5=>100

:-D


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harshavmrg
  Re: (90-8(20:4))/(1/2) [#permalink]
New postPosted: Tue Apr 03, 2012 6:55 am 
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fiendex wrote:
(90-8(20:4))/(1/2)

A) 25
B) 50
C) 100
D) 116
E) 170


...does : means division....?

i got confused there...but others have imagined or used : as \..... well if its \, then the answer is X

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kraizada84
  Re: (90-8(20:4))/(1/2) [#permalink]
New postPosted: Tue Apr 03, 2012 7:02 am 
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harshavmrg wrote:
fiendex wrote:
(90-8(20:4))/(1/2)

A) 25
B) 50
C) 100
D) 116
E) 170


...does : means division....?

i got confused there...but others have imagined or used : as \..... well if its \, then the answer is X


yeah its ratio i.e. 20:4 =20/4

HTH

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