The ans is 16 because :- if we drop from 16th floor and if egg1 breaks floor to be tested is b/w 1-16 . Then start from floor 1 with egg2 and floor from which it breaks first is obtained and will lie b/w 1-16. the attempts are no more than 16. however If egg1 doesn't break on 16 floor then try on (16+15)th i.e. 31st floor , it will have 16 attempts at max in both cases then (16+15+14)th and so on floor to be tried will be 16,31,45,58,70,81,91. In case it is 100th floor max attempts can be 7 attempts(earlier frm 16----91) and 9(92-100)attempts more i.e. 16 attempts.
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