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Integer

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Source: — Data Sufficiency |
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by sudhir3127 » Sat Aug 02, 2008 9:37 am
IMO E
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by bha » Sat Aug 02, 2008 11:35 am
I think answer is C
1. 1/y is integer..no info on X..Not Sufficient
2. 1/x is integer...this stmt can be true only if x=1..no info on Y..not sufficient...

Combining 1 and 2...x/y = x*(1/y)= 1 * integer = integer...hence answer is 'C'

What is OA?
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by ildude02 » Sat Aug 02, 2008 5:18 pm
bha wrote: 2. 1/x is integer...this stmt can be true only if x=1..no info on Y..not sufficient...
I think you are not taking fractions into consideration, since X can be 1/2 or any such fractions which would mean, 1/x is still an integer.
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by bha » Sat Aug 02, 2008 7:09 pm
ildude02 wrote:
bha wrote: 2. 1/x is integer...this stmt can be true only if x=1..no info on Y..not sufficient...
I think you are not taking fractions into consideration, since X can be 1/2 or any such fractions which would mean, 1/x is still an integer.
oops..I assumed x and y as integer...my bad...thanks for correcting me...
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by Vignesh.4384 » Sat Aug 02, 2008 8:42 pm
IMO C .
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by pepeprepa » Sun Aug 03, 2008 12:34 am
Counter-example of C as it was said if:
x=1/2 with 1/x an integer
y=1/3 with 1/y an integer
x/y=3/2 which is not an integer

so E
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