A box contains 4 red, 3 white and 2 blue balls. Three balls are drawn at random. Find out the number of ways of selecting the balls of different colours?  Choose the correct choice.
A) 62 B) 48 C) 12 D) 24 E) None of these
Explanation :   1 red ball can be selected in 4C1 ways   1 white ball can be selected in 3C1 ways   1 blue ball can be selected in 2C1 ways   Total number of ways   = 4C1 x 3C1 x 2C1   =4 x 3 x 2   = 24. Answer : Option 24
<result>D</result>
A box contains 4 red, 3 white and 2 blue balls. Three balls are drawn at random. Find out the number of ways of selecting the balls of different colours?