A bag contains 5 green and 8 white balls. If two balls are drawn simultaneously, the probability that both are of the same colour is Select.
A) 8/15 B) 2/5 C) 3/5 D) 11/15 E) 19/39
Drawing two balls of same color from five green balls can be done in 5C₂ ways.   Similarly from eight white balls two can be drawn in ⁸C₂ ways.   P = 5C₂/¹⁵C₂ + ⁸C₂/¹⁵C₂ = 19/39   ANSW19/39R:19/39
<result>E</result>
A bag contains 5 green and 8 white balls. If two balls are drawn simultaneously, the probability that both are of the same colour is