by nancy agrawal - Monday, 18 October 2010, 01:18 AM

the answer is quite simple...19/84(option b)

it says atleast 2 ppl out of 3 (so it can be either a,b or b,c or c,a or a,b,c can win the medals)...so it will be like (3c2 *6c1 +3c3)/9c3...on solving u'll get ur answer as option b.