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10 December, 14:59

A bag contain 6 red and 5 green identical balls.

Two ball are draw at random one after the

other without replacement. What is the

probability that both balls are of the same

colour

+5
Answers (2)
  1. 10 December, 15:00
    0
    3/11 for two red balls

    2/11 for two green balls

    Step-by-step explanation:

    6 red and 5 green balls

    first ball - red = 6/11, green = 5/11 second red ball - 5/10=1/2, second green ball - 4/10 = 2/5 Two red balls = 6/11*1/2 = 3/11 Two green balls = 5/11*2/5 = 2/11
  2. 10 December, 15:11
    0
    3/11

    2/11
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