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Algebra and number properties DS problem drawing me crazy

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Source: — Data Sufficiency |
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by tpr-becky » Fri Sep 10, 2010 10:29 am
Do you have a specific question in mind? I have some tips but it would be better to work from specifics.
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by get750 » Fri Sep 10, 2010 10:33 am
Lets take this problem :

if x and y are positive integers , what is the remainder when x is divided by y ?

1. When x is divided by 2y, the remainder is 4
2. When x + y is divided by y,the remainder is 4

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by anantbhatia » Fri Sep 10, 2010 11:41 pm
Is the OA E?
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by pradeepkaushal9518 » Sat Sep 11, 2010 3:59 am
x and y are positive integers means x>0 and y>0 what is remainder when x/y ?

1.when x is divided by 2y, the remainder

16/6 reminder =4 16/3 remainder =1

19/5 remainder =4 19/10 remainder=9

so its not suff A and D out

2.when x+y is divided by y remainder is 4

x+y/y 10+6/6= remainder = 4
10/6 remainder =4

14+5/5 remainder=4
14/5 remainder =4

so suff hence B
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