Mathematics, 19.01.2021 22:50, angelrenee2000

The telephone numbers in a small town have two digits. They run from 00 to 99.
Of the 100 possible numbers, those that
become smaller when reversed are not
used, i. e. 21 is not used. What is the
maximum number of telephone
numbers this town could have?

Answers: 1

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The telephone numbers in a small town have two digits. They run from 00 to 99.
Of the 100 pos...