2. How many unique 3 digit codes can be created from the 5 digits {1, 2, 3, 4, 5} if repetitions are allowed? 3. 10 students have appeared for a test in which the top three will get unique prizes. How many possible ways are there to get the prize winners? 4. In how many ways can I create 2 letter words from the letters in the word LOVE? Any 2 letters form a 2 letter word. 5. How many unique 3 letter passwords can be made from 4 letters if repetitions are allowed?

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