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OpenStudy (anonymous):
A password consists of 2 letters followed by 2 digits. How many different passwords can be formed?
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Parth (parthkohli):
First letter has 26 different possibilities. Second letter has 26 different possibilities. Then the first digit has 10 possibilities. Second digit has 10 possibilities too. Answer will be 26 * 26 * 10 * 10
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