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
OA A
1. 50 is in K
2.150 is in K
OA A
answer :A
Stmt 1:
50 is in K. so r=50, r+1=51
now r=51, r+1=52
therefore numbers afetr 50 are all in K..that means the series start from 50...sufficient
Stmt 2:
following foot steps of stmt 1 we cant say whether the series starts from 150 or 50 or 100.... insufficient
