A bag contains 6 green balls and 8 white balls. If two balls are drawn simultaneously, what is the probability that both balls are the same colour?
Choose the correct option:
A) 5 / 14
B) 8 / 21
C) 12 / 21
D) 43 / 91
E) 47 / 91

Rationale: the total number of ways to draw two balls is 14 c 2 = 91 the number of ways to draw two green balls is 6 c 2 = 15 the number of ways to draw two white balls is 8 c 2 = 28 p ( two balls of the same colour ) = 43 / 91 the answer is d .
Answer: D