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प्रश्न
Determine the number of permutations of the letters of the word SIMPLE if all are taken at a time?
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उत्तर
SIMPLE
Total Number of letters = 6
They can be arranged in 6! ways
∴ The number of words = 6!
= 6 × 5 × 4 × 3 × 2 × 1
= 720
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