MBA
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I want to know the basic difference b/w these two Questions: 1) there are 3 white, 4 red and 5 Black balls in a bag. In how many ways two balls can be selected?? 2)Find the no. of ways in which a selection of 4 letters can be made from the letters of the word "DISTILLATIONS". Kindly reply to this Question. Help on this would be highly appreciated.....
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