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Mathematics-Online problems: | ||

## Solution to the problem of the (previous) week |

** Problem:**

from
to

How many times does each of the digits occur?

**Answer:**

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** Solution:**

**First digit:**

The digits 0 and respectively appear each for ten hours
times and the digit for four hours
times

**Second digit:**

Each of the digits
are to be seen for three hours
times All the other digits do not appear between
20:00 and 23:59. They are displayed only
times

**Third digit:**

Here, only the digits
appear, and all of these for
the same number of times, that is
times

**Fourth digit:**

All the digits appear
times

To sum up we can compile the following table:

[problem of the week]