If three caps are picked at random, what is the probability that two are red and one is green ?
A). 9/22
B). 6/19
C). 1/6
D). 3/22
If four caps are picked at random, what is the probability that none is green ?
A). 7/99
B). 5/99
C). 7/12
D). 5/12
If four marbles are picked at random, what is the probability that one is green, two are blue and one is red ?
A). 24/455
B). 13/35
C). 11/15
D). 7/91
If two marbles are picked at random, what is the probability that either both are green or both are yellow ?
A). 5/91
B). 1/35
C). 1/3
D). 4/105
If four marbles are picked at random, what is the probability that at least one is blue ?
A). 4/15
B). 69/91
C). 11/15
D). 22/91