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Thank u for the notes! Just could you please explain the problem on Combinations (5 boys and 5 girls standing in the line...)? Cannot figure out how do you solve it.

THIS is the most important thing i have ever found. THANK YOU SO MUCH. You have done an amazing job. I feel guilty not contributing here. I vow to take time out and contribute in whatever little manner i can. I will.
_________________

My dad once said to me: Son, nothing succeeds like success.

i found one mistake though as i am going through this: on the first page, it says 0 is a prime number. Actually, 2 is the lowest prime number.

Moderators: Please correct me if I am wrong.

Thanks,

Good catch. You are right.

Page 2 under Prime Nos: "0 is an even integer and prime number; 1 is not a prime number"

0 is an even integer, alright. But, 0 is not a prime number. I see the statement just before that gives a good definition of prime numbers; "Prime number is a +ve number that has exactly 2 different +ve divisors. 1 and itself. "

All prime numbers are positive. Lowest prime number is 2. 1 is neither prime nor composite. 2 is the only even prime number.

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