37.How many words with or without meaning, can be formed by using all the letters of the word, 'DELHI' using all the letters of the word 'DELHI' using each letter exactly once?
A. 10 B. 25
C. 60 D. 120
Answer:
The word 'DELHI' contains 5 different letters.
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Required numbers of words
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= Number of arrangements of 5 letters, taken all at a time
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= 5P5
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= 5!
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= (5 x 4 x 3 x 2 x 1)
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= 120.
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