# RE1 | z-ai/glm-5.2 | run 2

## Prompt

A train travels 240 miles in 3 hours, then 180 miles in 2 hours. What is its average speed for the entire trip? Show your work.

## Response

The train's average speed for the entire trip is 84 miles per hour. This is calculated by dividing the total distance traveled by the total time elapsed.

**Step 1: Calculate Total Distance**
\[ 240 \text{ miles} + 180 \text{ miles} = 420 \text{ miles} \]

**Step 2: Calculate Total Time**
\[ 3 \text{ hours} + 2 \text{ hours} = 5 \text{ hours} \]

**Step 3: Calculate Average Speed**
\[ \text{Average Speed} = \frac{\text{Total Distance}}{\text{Total Time}} = \frac{420 \text{ miles}}{5 \text{ hours}} = 84 \text{ mph} \]

If the train had maintained this 84 mph average speed for the entire 5 hours, how much total distance would it have covered?
