Direction: Study the following information carefully and answer the given questions.
There were some red, some green and some white balls in a bag. Probability of drawing 1 white ball from the bag is $$ {1\over 3}$$ . If there were 6 more red balls in the bag, the probability of getting 1 green ball would have been $$ {1\over 30}$$ less.

Q:

If sum of green and white balls is 16, then what is the probability of drawing 2 balls of same colour?

• 1
  $$ {151\over 870}$$
• 2
  $$ {151\over 435}$$
• 3
  $$ {151\over 145}$$
• 4
  $$ {151\over 435}$$
• 5
  None of these