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sameeranpanda
- Newbie | Next Rank: 10 Posts
- Posts: 3
- Joined: Sun Jun 01, 2008 8:10 am
- Location: Hardford
sameeranpanda wrote:Cud someone, plz help me out with this?
I'm not sure about my reasoning.....pls correct me if i'm wrong......
Since it is a True/False question , a person can have 2 choices per question . so the total no: of ways to answer n questions will be 2^n
the no: of ways by which all are correct will be --> 1 way
so (1/2^n) < (1/1000)
ie. 2^n > 1000
the min value of n to satisfy the above inequality is n=10
