Reduced efficiency: 30 × 0.90 = 27 mpg
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- Area of path: 816 - 600 = 216 m²
- A car travels 240 miles using 8 gallons of fuel. If fuel efficiency decreases by 10% on a longer trip, how many gallons are needed to travel 360 miles?
- Original fuel efficiency: 240 / 8 = 30 mpg
- Gallons needed for 360 miles: 360 / 27 ≈ 13.33
- #### 13.33
- The ratio of boys to girls in a class is 3:4. If there are 12 more girls than boys, how many students are in the class?
