# RE3 | x-ai/grok-4.3 | run 2

## Prompt

If 3 workers build a wall in 12 hours, how long would 4 workers take to build the same wall working at the same rate? Show your work.

## Response

3 workers complete the wall in 12 hours, requiring a total of 36 worker-hours. Dividing that total by 4 workers yields a completion time of 9 hours.

The work rate calculation follows directly:

\[
3 \times 12 = 36
\]

\[
36 \div 4 = 9
\]

Thus, 4 workers finish the same wall in 9 hours.

What factors might change this result if worker rates varied?
