K is a set of integers such that if the integer r is in K, then r + 1 is also in K. Is 100 in K?
(1) 50 is in K.
(2) 150 is in K.
Can anyone help pls...?
DS question
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IMO A
Q says that is r is in set K then r+1 will be in K
Stmt 1 - 50 is in K. Then 51 will be in K. 52 will be in K. So on and so forth... 100 will be in K too
Stmt 2 - 150 is in K. The Q does not say if r is in K, r-1 is in K or not.
Q says that is r is in set K then r+1 will be in K
Stmt 1 - 50 is in K. Then 51 will be in K. 52 will be in K. So on and so forth... 100 will be in K too
Stmt 2 - 150 is in K. The Q does not say if r is in K, r-1 is in K or not.
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I agree with Kajcha ans should be A
Stmt 1 - same as Kajcha explained
Stmt 2 - 150 is in K then 151 must be in K ... hence 100 is not in K, this is possible if 150 is the first integer in the set or basically the set begins from 101.
wheras if the set starts from an integer less than 150 and 100 then 100 will also be there in the set & so will be 150
hence not SUFF
Stmt 1 - same as Kajcha explained
Stmt 2 - 150 is in K then 151 must be in K ... hence 100 is not in K, this is possible if 150 is the first integer in the set or basically the set begins from 101.
wheras if the set starts from an integer less than 150 and 100 then 100 will also be there in the set & so will be 150
hence not SUFF
Last edited by samirpandeyit62 on Wed Sep 26, 2007 7:19 am, edited 1 time in total.
Regards
Samir
Samir
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