#### 3024
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- Total tomatoes: 12 × 18 × 4 = 864
- Total lettuces: 15 × 24 × 6 = 2,160
- Total vegetables: 864 + 2,160 = 3,024
- A cleantech startup in Berlin develops a solar panel that generates 280 watts per hour under optimal conditions. If the panel operates at 75% efficiency for 6 hours a day, how many watt-hours of energy does it produce daily?
- Optimal daily output: 280 × 6 = 1,680 watt-hours
- At 75% efficiency: 1,680 × 0.75 = 1,260 watt-hours
