To find the energy efficiency of the system, we can proceed through the following steps:
1. Determine the Energy Efficiency as a Fraction:
- We have the energy output and energy input values.
- The formula to calculate energy efficiency as a fraction is:
[tex]\[
\text{Energy Efficiency (Fraction)} = \frac{\text{Energy Output}}{\text{Energy Input}}
\][/tex]
- Plugging in the given values:
[tex]\[
\text{Energy Efficiency (Fraction)} = \frac{25 \, \text{units}}{100 \, \text{units}} = 0.25
\][/tex]
2. Convert the Fraction to a Percentage:
- To convert the energy efficiency from a fraction to a percentage, we multiply by 100:
[tex]\[
\text{Energy Efficiency (Percentage)} = 0.25 \times 100 = 25\%
\][/tex]
Thus, the energy efficiency of the system is:
[tex]\[
\boxed{25\%}
\][/tex]
