To determine which machine has the highest efficiency, we need to calculate the efficiency for each machine option provided. Efficiency can be calculated using the formula:
\[ \text{Efficiency} = \frac{\text{Output}}{\text{Input}} \times 100% \]
For each option, we will compute the efficiency:
A: 750 / 1500
\[ \text{Efficiency}_A = \frac{750}{1500} \times 100% = 50% \]
B: 1000 / 4000
\[ \text{Efficiency}_B = \frac{1000}{4000} \times 100% = 25% \]
C: 450 / 600
\[ \text{Efficiency}_C = \frac{450}{600} \times 100% = 75% \]
D: 3000 / 5000
\[ \text{Efficiency}_D = \frac{3000}{5000} \times 100% = 60% \]
Comparing the efficiencies:
- Efficiency A: 50%
- Efficiency B: 25%
- Efficiency C: 75%
- Efficiency D: 60%
The machine with the highest efficiency is Option C (450/600) with an efficiency of 75%.
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