Answer
Maximum of 29 bags can be transported in one go.
Work Step by Step
Let x be the number of cement bags.
The total weight of the elevator with x bags would be:
\[245+95x\]
Now, the weight constraint gives rise to the following inequality:
\[245+95x\le 3000\]
This can be solved as follows:
\[\begin{align}
& 245+95x\le 3000 \\
& 245+95x-245\le 3000-245 \\
& 95x\le 2755 \\
& \frac{95x}{95}\le \frac{2755}{95}
\end{align}\]
\[x\le 29\]
Maximum of 29 bags can be transported in one go.