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number properties

by sud21 » Sat Jan 28, 2012 11:19 pm
If x+y is a multiple of 35, x=? (x and y should be integers)
1). When x is divided by 5, the remainder is 1
2). When y is divided by 7, the remainder is 3
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Source: — Data Sufficiency |
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by Jim@StratusPrep » Sun Jan 29, 2012 3:29 pm
1) X can end in a 6 or 1 --> Not sufficient
2) If y is 10, x could equal 25, or if y is 17 x would equal 18 Not sufficient


Using Y as a constraint possible here are potential values for x

Y X (if x+y = 35) X (if x+y = 70)

10 25 60
17 18 53
24 11 46

X could equal 11 or 46, the answer is E.
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