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Serial number of a given number when 5-digit numbers from given digits (repetition allowed) are listed in order

The same question, asked 2 times: 29 Jan 2023*, 31 Jan 2023. Every wording below, oldest first.

Try each one first, then open its answer.

  1. Question 1

    29 Jan 2023

    89
    Five-digit numbers are formed using the digits 1, 2, 3,5, 7 with repetitions and are written in descending order with serial numbers. For example, the number 77777 has serial number 1 . Then the serial number of 35337 is

  2. Question 2

    31 Jan 2023

    86
    Let 5-digit numbers be constructed using the digits 0,2,3,4,7,90,2,3,4,7,9 with repetition allowed, and are arranged in ascending order with serial numbers. Then the serial number of the number 42923 is