Question

Luca rode his bicycle 8 kilometers on Monday. On Tuesday, he rode his bicycle 20% farther than he rode on Monday. On Wednesday, he rode his bicycle 10% farther than he rode on Tuesday.

Complete the following prompts.

***Do not round the numbers.***

(3 points)
How many more kilometers did Luca ride his bicycle on Tuesday?
kilometers

How far did Luca ride his bicycle on Tuesday?
kilometers

How many more kilometers did Luca ride his bicycle on Wednesday?
kilometers

Question 2
How far did Luca ride his bicycle on Wednesday?(1 point)
Responses

8.3 kilometers
8.3 kilometers

9.68 kilometers
9.68 kilometers

10.4 kilometers
10.4 kilometers

10.56 kilometers

Answers

GPT-4o mini
Let's break down each day's ride:

1. On **Monday**, Luca rode his bicycle **8 kilometers**.

2. On **Tuesday**, he rode **20% farther** than he did on Monday:
\[
\text{Distance on Tuesday} = \text{Distance on Monday} + 0.20 \times \text{Distance on Monday} = 8 + 0.20 \times 8 = 8 + 1.6 = 9.6 \text{ kilometers}
\]

To find out how many more kilometers Luca rode on Tuesday compared to Monday:
\[
\text{More kilometers on Tuesday} = \text{Distance on Tuesday} - \text{Distance on Monday} = 9.6 - 8 = 1.6 \text{ kilometers}
\]

3. On **Wednesday**, he rode **10% farther** than he did on Tuesday:
\[
\text{Distance on Wednesday} = \text{Distance on Tuesday} + 0.10 \times \text{Distance on Tuesday} = 9.6 + 0.10 \times 9.6 = 9.6 + 0.96 = 10.56 \text{ kilometers}
\]

To find out how many more kilometers Luca rode on Wednesday compared to Tuesday:
\[
\text{More kilometers on Wednesday} = \text{Distance on Wednesday} - \text{Distance on Tuesday} = 10.56 - 9.6 = 0.96 \text{ kilometers}
\]

Now we can answer the prompts:

1. How many more kilometers did Luca ride his bicycle on Tuesday?
**1.6 kilometers**

2. How far did Luca ride his bicycle on Tuesday?
**9.6 kilometers**

3. How many more kilometers did Luca ride his bicycle on Wednesday?
**0.96 kilometers**

For Question 2, the choices for how far Luca rode his bicycle on Wednesday are:

- 8.3 kilometers
- 9.68 kilometers
- 10.4 kilometers
- 10.56 kilometers

The correct answer is:
**10.56 kilometers**.