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 probability of drawing 1 ball such that it is not green is $$ { 4\over 5}$$, then sum of the number of red and white balls is

• 1
  20
• 2
  30
• 3
  24
• 4
  16
• 5
  None of these