Given the following passage

"The Alps provide lowland Europe with drinking water, irrigation, and hydroelectric power. Although the area is only about 11 percent of the surface area of Europe, the Alps provide up to 90 percent of water to lowland Europe, particularly to arid areas and during the summer months. Cities such as Milan depend on 80 percent of water from Alpine runoff. Water from the rivers is used in over 500 hydroelectricity power plants, generating as much as 2900 kilowatts of electricity.",

answer the following question. Note that the answer is present within the text.

Question: __ has been a central part of agriculture for 5000 years.
The facts in the passage show that the Alps provide lowland Europe with drinking water, irrigation and hydroelectric power. The words shown above are from a sentence which says: "Although the area is only about 11 percent of surface area of Europe,the Alpes provide up to 90%of water for lowland europe".
So we can conclude that this means that Alpine runoff provides quite a bit more than just drinking water (90%), but also helps irrigate land because there isn't enough rainwater present.
A rancher owns a mixture of 8 sheep and 5 cattle that graze on his land.  In a typical year, the rancher will allow his animals to feed off his pastures for as long as possible before they run out of grass.  After the pastures run out of grass, he must buy feed corn for $10 per bag.  Each cow eats 2 acres of grass per month, and each sheep eats 1 acre of grass per month.  Additionally, a bag of feed corn can feed each cow for 1 month and each sheep for 2 months.   If the rancher's pasture contains 144 acres of grass, how much will the rancher need to spend on feed corn to feed his animals each year?
First, the 144 acres of grass will be eaten according to the equation 5*2*T + 8*1*T = 144.
Solving this equation for T, we find 18*T = 144, or T = 8 months of food are covered by the animals grazing on the rancher's pasture.
This means the farmer must buy feed corn for the remaining 12 - 8 = <<12-8=4>>4 months.
Next, the rancher's 8 sheep will require 4/2 = 2 bags of feed corn each, or 8*2 = <<8*2=16>>16 bags of feed corn in total for the 4 month period.
The rancher's 5 cows will require 4/1 = 4 bags of feed corn each, or 5*4 = <<5*4=20>>20 bags of feed corn in total for the month.
Therefore, the rancher needs 16+20 = <<16+20=36>>36 bags of feed corn for all of his animals.
So, the rancher will need to spend 36*10 = $<<36*10=360>>360 per year on feed corn.
#### 360
You are an expert at transforming general questions into domain-specific, math-related questions. Your task is to generate only the transformed math question without including any answers or solutions.

### Step-by-Step Instructions
#### Step 1: Analyze and Understand the General Question
   - Objective: Fully understand the general question to grasp its context, key concepts, and quantitative elements.
   - Guidelines:
     - Identify the core topic (e.g., measurement, comparison, probability) and **specific details** that can inspire mathematical transformations.
     - Consider how the question’s **structure and format** might be adapted to a mathematical context. For example, if the question compares quantities or discusses measurements, consider framing these as math problems involving calculations, rates, or proportions.

#### Step 2: Refer to the Domain-Specific Question (for Inspiration Only)
   - Objective: Use the domain-specific question to understand how similar questions are formulated in a mathematical way.
   - Guidelines:
     - Extract Core Concepts: Identify the main mathematical ideas in the domain-specific question and consider how these concepts can apply to the general question.
     - Focus on Transformation, Not Duplication: Use the structure of the domain-specific question as a guide but create a unique question aligned with the general question’s theme.
     - Frame questions to encourage mathematical reasoning, such as using multi-step calculations, logical problem-solving, or real-world applications.

#### Step 3: Generate the Transformed Math Question
   - Objective: Create an original math question that retains the context and theme of the general question pair.
   - Guidelines:
     - Preserve Original Context: Integrate elements from the general question (e.g., scenario, characters, or objects) into the math question to make it cohesive and relevant.
     - Introduce a Mathematical Challenge: Frame the question to require mathematical thinking, such as:
       - Calculations (e.g., “Calculate the time needed if…”)
       - Comparative reasoning (e.g., “Determine which option has a higher value if…”)
       - Probability or logic-based reasoning (e.g., “What are the chances of selecting a specific item if…”)
     - Avoid Including Solutions: Ensure the output contains only the transformed math question without any answers or calculations.

### Response Rule
- Generate **only the "Transformed Domain Question"** for **Example 4** without including any answer, explanation, or solution.

### Output Format
- **Transformed Domain Question**: [Write your transformed question here.]

### Example 1:
- **General Question**: Given the sentence "A man with a beard playing an instrument," is it true that "The person has a beard"?
- **Domain Question**: What is the total cost of purchasing equipment for all sixteen players on the football team, considering that each player requires a $25 jersey, a $15.20 pair of shorts, and a pair of socks priced at $6.80?
- **Transformed Domain Question**: In a concert audience of 1,000 people, where 45% of attendees are male and 30% of the males have beards, what is the probability of randomly selecting a bearded man from the crowd?

### Example 2:
- **General Question**: Acids have pH values below 7. The lower the pH value, the more strongly acidic the substance. Having read the above passage, choose the right answer to the following question (choices are higher or lower): You can find tables that show the pH value of different fruits and vegetables. The fruits such as apples are barely acidic so they have a pH value that is higher or lower?
- **Domain Question**: If Williams has a certain amount of money, Jackson has 5 times that amount. If they have a total of $150 together, how much money does Jackson have in dollars?
- **Transformed Domain Question**: In a study of soil pH levels across various agricultural zones, it's noted that some zones are more acidic due to the types of crops grown there. If Zone A has an average soil pH of 5.7 and is noted for its apple orchards, which are known for requiring slightly acidic soil, calculate the comparative pH difference percentage between Zone A and Zone B, where Zone B has a soil pH of 6.8, suitable for less acidic crop requirements.

### Example 3:
- **General Question**: Detailed Instructions: In this task, you are given a sentence in the Hindi language and your task is to convert it into the English language. In translation, keep numbers as it is and make it sentence case (capitalize only the first word of each sentence and noun).
- **Domain Question**: Mary and Ann are going sledding. Mary slides down a hill that's 630 feet long at a speed of 90 feet/minute. Ann slides down a hill that's 800 feet long at a rate of x feet/minute. How much longer does Ann's trip take than Mary? If we know the answer to the above question is 13, what is the value of unknown variable x?
- **Transformed Domain Question**: Given the geopolitical tension in the region described, if the fall of the Ottoman and Russian empires led to the redistribution of their controlled territories among other nations, assume these territories were divided into 10 new countries with varying sizes. The largest new country occupies 30% of the total territory once held by these empires. If the total land previously controlled by the Ottoman and Russian empires was 2,000,000 square kilometers, calculate the area of the largest new country in square kilometers.

### Example 4:
- **General Question**: Given the following passage

"The Alps provide lowland Europe with drinking water, irrigation, and hydroelectric power. Although the area is only about 11 percent of the surface area of Europe, the Alps provide up to 90 percent of water to lowland Europe, particularly to arid areas and during the summer months. Cities such as Milan depend on 80 percent of water from Alpine runoff. Water from the rivers is used in over 500 hydroelectricity power plants, generating as much as 2900 kilowatts of electricity.",

answer the following question. Note that the answer is present within the text.

Question: __ has been a central part of agriculture for 5000 years.
- **Domain Question**: A rancher owns a mixture of 8 sheep and 5 cattle that graze on his land.  In a typical year, the rancher will allow his animals to feed off his pastures for as long as possible before they run out of grass.  After the pastures run out of grass, he must buy feed corn for $10 per bag.  Each cow eats 2 acres of grass per month, and each sheep eats 1 acre of grass per month.  Additionally, a bag of feed corn can feed each cow for 1 month and each sheep for 2 months.   If the rancher's pasture contains 144 acres of grass, how much will the rancher need to spend on feed corn to feed his animals each year?
- **Transformed Domain Question**: 