krushna wrote:
worst case
--------------
even distribution of 27 students' birth months across 12 months..
after 24 students, each month will have 2 students' birthday. The rest 3 students' birthday can go in to any month
making the count to 3 or more.
So this is always true or the situtaion will exists all the time and hence the probability should be 1 (E)
(put little more description)
Sure, correct answer. I think we don't need much calculation for this question, just simple logic right?
Similar simple logic question :
In a drawer which contain 23 pcs red socks and 15 pcs white socks, how many minimum socks should we take
without looking to get one pair with the same color?
_________________
There's an app for that - Steve Jobs.