12
Question
The no of ways of selecting atleast one letter from the letters of the word "PROPORTION" is
The no of ways of selecting atleast one letter from the letters of the word "PROPORTION" is
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Solution
The correct option is D 287
Letters P R O T I N
Frequency 2 2 3 1 1 1
Thus required number of ways
=(2+1)(2+1)(3+1)23−1=288−1=287
Letters P R O T I N
Frequency 2 2 3 1 1 1
Thus required number of ways
=(2+1)(2+1)(3+1)23−1=288−1=287
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