To determine the fraction of cars on the lot that are both gray and electrically powered, we need to find the number of gray and electrically powered cars and divide that by the total number of cars.
Given:
- Total number of gray cars = 25
- Number of gray cars that are electrically powered = 13
Thus, the fraction of cars that are both gray and electrically powered is:
\[ \text{Fraction} = \frac{\text{Number of gray and electrically powered cars}}{\text{Total number of gray cars}} = \frac{13}{25} \]
However, we need the fraction of all the cars in the lot. We do not have the total number of cars, but we need to express this in relation to the total:
Assuming the total number of cars in the lot (let's denote it as \( T \)), the fraction becomes:
\[ \text{Fraction} = \frac{13}{T} \]
Without knowing \( T \), we can't simplify it further. If you need the fraction relative to the total number of cars on the entire lot, you simply take the fraction of gray and electrically powered cars over the total lot size. Since we don't have the total count, we'll focus simply on the fraction of the gray and electric cars stated:
Thus, in the current context, the answer is \( \frac{13}{Total\ Cars} \).
If \( T \) was implied as something specific or if you have that number, you can substitute it in. If there are any specific total number of cars you need considered in this, please provide that, and we can give one final answer.