bag balloon and stone qs
Wed, 2008-02-20 14:59
Lina has a job in hand. She has to bring out some stones placed inside some balloons which are inside some bags.
She has 6 different colored bags of balloons and each bag has 6 similar (same shape and size) balloons inside. Each balloon has 6 different type stones (s1, s2, s3. . .s6)inside.
Note: stones inside a particular balloon are different and each balloon has similar sets of stones
Q1. In how many different ways lina can bring 2 similar stones from the balloons.
Q2. If lina brings 6 stones out then what is the probability that all of them are of type s1?
