GPT-5.6 Terra vs Kimi K3 for everyday maths

1. **Gallons needed for 260 miles:**

\[
\frac{260}{42}=6.1905\text{ gallons}
\]

2. **Convert gallons to litres:**

\[
6.1905 \times 4.546 = 28.1419\text{ litres}
\]

3. **Calculate fuel cost:**

\[
28.1419 \times £1.46 = £41.0872
\]

4. **Round to the nearest 10p:**

\[
£41.0872 \approx £41.10
\]

**The 260-mile journey costs approximately £41.10 in fuel.**

# Fuel Cost Calculation

## Step 1: Work out gallons needed

$$\text{Gallons} = \frac{260 \text{ miles}}{42 \text{ mpg}} = 6.19 \text{ gallons (approx)}$$

## Step 2: Convert gallons to litres

$$6.1905 \times 4.546 = 28.14 \text{ litres (approx)}$$

## Step 3: Work out the cost

$$28.14 \times £1.46 = £41.09 \text{ (approx)}$$

## Step 4: Round to the nearest 10p

$$£41.09 \rightarrow \boxed{£41.10}$$

**The 260-mile journey costs approximately £41.10 in fuel.**