Question

A bag contains 6 red, 4 white and 8 blue balls. If three balls are drawn at random, then the probability that 2 are white and 1 is red, is

• A. $\frac { 5 } { 204 }$
• B. $\frac { 7 } { 102 }$
• C. $\frac { 3 } { 68 }$
• D. $\frac { 1 } { 13 }$

Answer 1

Answer: (C)

$\frac { 3 } { 68 }$

Answer 2

Required probability y $= \frac { { } ^ { 4 } C _ { 2 } \times { } ^ { 6 } C _ { 1 } } { { } ^ { 18 } C _ { 3 } } = \frac { 3 } { 68 }$