CAT Quantitative Ability Questions | CAT Permutation, Combination and Probability questions
CAT/1999
Question . 57
There are three boxes with 2 red, 2 white and one red and one white ball. All of them are mislabelled. You have to correct all the labels by picking only one ball from any one of the boxes. Which is the box that you would like to open
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Method of solving this CAT Quantitative Ability Question from Permutation, Combination and Probability question
(c) Since all are mislabeled open red / white. Now,
if red comes out then both are red in the box. And now change the label, make the box as all red. Now change all white in red / white and all red into all white. Labels are now correct.
If white comes out then both are white in the box. And now change the label, make the box as all white. Now change all red in red / white and all white into all red. Labels are now correct.