a) 216 three-letter "words" can be made from 6 letters FGHIJK'' if repetition of letters is allowed
b) 120 three-letter "words" can be made from 6 letters FGHIJK'' if repetition of letters is not allowed
The given word is FGHIJK
The number of letters in FGHIJK = 6
The number of three letter words that can be formed from 6 letters FGHIJK if repetition is allowed is calculated as shown below
<u>If </u><u>repetition</u><u> is </u><u>allowed</u>
Number of three-letter "words" can be made from 6 letters FGHIJK =
Number of three-letter "words" can be made from 6 letters FGHIJK = 6x6x6
Number of three-letter "words" can be made from 6 letters FGHIJK = 216
216 three-letter "words" can be made from 6 letters FGHIJK'' if repetition of letters is allowed
The number of three letter words that can be formed from 6 letters FGHIJK if repetition is not allowed is calculated as shown below
<u>If repetition is</u><u> not allowed</u>
Number of three-letter "words" can be made from 6 letters FGHIJK = 6P3
Number of three-letter "words" can be made from 6 letters FGHIJK =
Number of three-letter "words" can be made from 6 letters FGHIJK =
Number of three-letter "words" can be made from 6 letters FGHIJK =
Number of three-letter "words" can be made from 6 letters FGHIJK = 120
120 three-letter "words" can be made from 6 letters FGHIJK'' if repetition of letters is not allowed
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