S1 is suff and S2 is not for the following reasons
S1) if its true then p can be anything------->18,36.....multiple of 18
for all the value mentioned above p/18 is an int
S) =p/3 and it can be int for all p=3,6,9,12,15,18,......multiple of 3
and as we can see from s2 that if p=3 s2 is true but the p/18 is not an int
and for p=18 bth the s2 is true and p/18 is int
two possibilties and hence insuff..
HTH
Integer
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Source: Beat The GMAT — Data Sufficiency |
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thephoenix
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