The length of a rectangle is 2 inches less than 3 times the number of inches in its width. If the perimeter of the rectangle is
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The probability to choose letter n is 
. After drawing letter n there left 25 letters and the probability to choose the letter w is 
. After drawing two letters n and w there left 24 letters and then the probability to choose letter b is 
. After drawing three letters n, w and b there left 23 letters, so the probability to choose letter t is 
.
Using the product rule for probabilities, you can obtain that
.
Using the product rule for probabilities, you can obtain that