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OpenStudy (anonymous):
How many 3-letter code words are possible using the first 6 letters of the alphabet if no letter can be repeated?
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OpenStudy (anonymous):
a 150 b 120 c 125
ganeshie8 (ganeshie8):
|dw:1395260227946:dw|
ganeshie8 (ganeshie8):
first letter can be any one of 6 letters : 6 ways
ganeshie8 (ganeshie8):
similarly second letter can be chosen in : 6 ways and third letter can be chosen in : 6 ways
OpenStudy (anonymous):
its 120
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ganeshie8 (ganeshie8):
so total words possible = ?
OpenStudy (anonymous):
120?
ganeshie8 (ganeshie8):
|dw:1395260329842:dw|
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