There are 6 red balls and 4 blue balls in a jar. If 3 balls are selected from the jar, what is the probability that all 3 balls selected are red balls? Pick
A) 1/3	B) 1/6	C) 5/12	D) 5/24	E) 7/24
The number of ways of choosing 3 balls from the jar is 10C3 = 120.   The number of ways of choosing 3 red balls is 6C3 = 20.   P(3 red balls) = 20/120=1/6.   The answer is 1/6.
<result>B</result>
There are 6 red balls and 4 blue balls in a jar. If 3 balls are selected from the jar, what is the probability that all 3 balls selected are red balls?