Question

1. Two balls are drawn from a bag containing 5 white and 7 black balls at random. What's
the probability that they would be of different colours?​

Answer 1

Answer:

assuming replacement of the first ball

P (white ) = 5 /12

P ( black ) = 7 /12

P ( white and black )

= 5 /12 × 7 /12

= 35 /144

P ( black and white )

= 7/ 12 × 5/ 12

= 35 /144

Step-by-step explanation:

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