7.3. A four-digit number can be divided by the sum of the two two-digit numbers formed by its first two digits and last two digits. Question: Can the sum of these two two-digit numbers be equal to 94?

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7.3. Cannot.

Let the four-digit number be $\overline{a b c d}$. Suppose $\overline{a b}+\overline{c d}=94$, then $\overline{a b c d}$ can be divisible by 94, and $\overline{a b c d}=100 \overline{a b}+\overline{c d}=99 \overline{a b}+94$. Therefore, $99 \overline{a b}$ can be divisible by 94, which is only possible when $\overline{a b}=94$, hence $\overline{c d}$ is not a two-digit number.