Time at new speed \(= \frac{120}{80} = 1.5\) hours.
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- A car travels 120 km in 2 hours. If its speed is increased by 20 km/h, how much less time will it take to travel the same distance?
- Original speed \(= \frac{120}{2} = 60\) km/h.
- New speed \(= 60 + 20 = 80\) km/h.
- Time saved \(= 2 - 1.5 = 0.5\) hours.
- #### 0.5
- In a class of 30 students, 18 play soccer, 12 play basketball, and 5 play both. How many students play neither sport?
