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The image contains a word problem in Chinese related to finding the most cost-effective option for renting vehicles. Here’s a breakdown of the problem:

### Problem Summary:
There are 30 people going on a trip, and they have three types of vehicles to choose from:
1. **Large Bus**: 
   - Capacity: 30 people
   - Cost: 10 Yuan per hour
2. **Small Bus**: 
   - Capacity: 8 people
   - Cost: 8 Yuan per hour
3. **Car**:
   - Capacity: 4 people
   - Cost: 5 Yuan per hour

### Question:
The problem asks: **"How can the vehicles be chosen to be more economical?"**

### Solution Approach:
To solve the problem, we need to find the combination of vehicles that can accommodate 30 people at the lowest cost per hour.

Let's calculate the cost for different combinations:

1. **Option 1: One Large Bus**
   - 1 Large Bus can accommodate all 30 people.
   - Cost: \(10\) Yuan per hour.

2. **Option 2: Small Buses Only**
   - Each small bus can accommodate 8 people.
   - To accommodate 30 people, we need \(\lceil 30 / 8 \rceil = 4\) small buses.
   - Total cost: \(4 \times 8 = 32\) Yuan per hour.

3. **Option 3: Cars Only**
   - Each car can accommodate 4 people.
   - To accommodate 30 people, we need \(\lceil 30 / 4 \rceil = 8\) cars.
   - Total cost: \(8 \times 5 = 40\) Yuan per hour.

4. **Mixed Combinations:**
   - **3 Small Buses (24 people) + 2 Cars (6 people):**
     - Cost: \(3 \times 8 + 2 \times 5 = 24 + 10 = 34\) Yuan per hour.
   - **2 Small Buses (16 people) + 4 Cars (16 people):**
     - Cost: \(2 \times 8 + 4 \times 5 = 16 + 20 = 36\) Yuan per hour.

### Conclusion:
The most cost-effective option is to rent **1 Large Bus** for 10 Yuan per hour, which is the cheapest solution to accommodate all 30 people.

Would you like more details or have any questions about the problem? Here are some related questions to expand on:

1. How can we calculate the cost per person for each option?
2. What would change if the number of people were different, say 40 or 50?
3. Can we create a mathematical model or formula for general cases?
4. How can we factor in other potential costs, such as fuel or driver fees?
5. What if there is a time limit for the trip? How would that affect the decision?

**Tip:** Always check multiple combinations to find the optimal solution in problems involving cost or resource allocation!

There are 30 people going on a trip. They can rent a Large Bus (30 people, 10 Yuan/hour), Small Bus (8 people, 8 Yuan/hour), or Car (4 people, 5 Yuan/hour). How can they rent the most economical combination of vehicles?

Learn how to solve a cost minimization problem for renting vehicles to transport 30 people. Explore different combinations of a Large Bus, Small Bus, and Cars to find the most economical solution. Suitable for students in Grades 7-9.

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