A bag contains 10white,, 5black, 3green, 2 Red balls one ball drawn random find probability ball drawn white or black or grenn
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Total number of balls=20
Out of 20 balls 18 are favourable except red
Required probability =favourable events /total number of events
=18/20=9/10
Out of 20 balls 18 are favourable except red
Required probability =favourable events /total number of events
=18/20=9/10
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