1. there are 6 diff pairs of gloves.if 8 gloves are selected at random then what is the probability that there are exactly 2 pairs??

 

2. 12 distinct balls are distributed among 3 different boxes.then what is the probability that first box contains 3 balls?

 

3. a six-faced die is biased such that it is twice to show an even no. when thrown. if it is thrown thrice then what is the probability that sum of the no. is even?

 

4.there is a group of 6 persons.they play a game in which each has to select a number from 1 to 4.the group wins if at least 5 of them have same selection of numbers, then what is the probability that the group wins?

 

5.what is the probability of selecting two squares of 1*1 house from a chess board with one side in common?