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9. How many words, with or without meaning can be made from the letters of the word
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9. How many words, with or without meaning can be made from the letters of the word MONDAY, assuming that no letter is repeated, if.
(a) 4 letters are used at a time.
(b) All letters are used at a time
(c) All letters are used but first letter is a vowel?
(a) 4 letters are used at a time.
(b) All letters are used at a time
(c) All letters are used but first letter is a vowel?
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