# RE7 | x-ai/grok-4.3 | run 1

## Prompt

A bat and a ball cost $1.10 together. The bat costs $1.00 more than the ball. How much does the ball cost?

## Response

The ball costs $0.05. The bat then costs $1.05, for a correct total of $1.10.  

## Solution
Let the ball cost \( x \) dollars.  
The bat costs \( x + 1 \).  
The equation is \( 2x + 1 = 1.10 \).  
Solving yields \( x = 0.05 \).  

## Intuitive Error
Subtracting $1.00 directly from $1.10 gives the wrong answer of $0.10, which would make the total $1.20.  

Would you like a similar problem using different amounts?
