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25 balls in a box. colors: red, white or blue. each numbered [#permalink]
01 Feb 2007, 04:11
25 balls in a box. colors: red, white or blue. each numbered 1 to 10. if 1 is selected at random what is the probability the ball selected is either white
or has even number painted on it?
1. prob. of white and even = 0
2. prob. of white minus prob. even number = 0.2