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8 December, 22:26

A web-site asks users to create a 5-symbol PIN code where first and second symbols are any letters from the English alphabet and next 3 symbols are any digits. How many different PIN codes can be created?

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  1. 9 December, 01:53
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    There are 676,000 possible PIN codes.

    There are 26 letters in the English alphabet, and 10 digits.

    26 * 26 * 10 * 10 * 10

    676 * 10 * 10 * 10

    6760 * 10 * 10

    67600 * 10

    676000
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