21. A bag contains 3 red, 4 white and 5 blue balls. 2 ballsare drawn a

1.	21. A bag contains 3 red, 4 white and 5 blue balls. 2 ballsare drawn at random. The probability that they are ofdifferent colours is,
Answer» ANSWER: total no. of OUTCOMES = 3 +4+5+2 =13 no. of outcomes = 4 so, probability that they are of different colours = 4/13

21. A bag contains 3 red, 4 white and 5 blue balls. 2 ballsare drawn at random. The probability that they are ofdifferent colours is,

Answer»

ANSWER:

total no. of OUTCOMES = 3 +4+5+2 =13

no. of outcomes = 4

so, probability that they are of different colours = 4/13

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21. A bag contains 3 red, 4 white and 5 blue balls. 2 ballsare drawn at random. The probability that they are ofdifferent colours is,​

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21. A bag contains 3 red, 4 white and 5 blue balls. 2 ballsare drawn at random. The probability that they are ofdifferent colours is,