Read the following article and answer the question.
Article: Wang Bing is a 12-year-old boy. He likes sports very much and does well in sports.
One afternoon, he comes out of the classroom and sees his father waiting for him at the school gate. He is very glad and he runs to his father. "Dad, please don't wait for me after school next time. I can go home by myself . I have grown up." says Wang Bing.
"Let's go," says the father, "I'll cook supper and you can do your homework at home: Mum is still at work."On their way home, Wang Bing sees some boys skating in a park. "Can I go and learn skating. Dad?" asks Wang Bing. "I'm sorry, my boy. You must go home and do your homework," answers his father, "but I can buy you an ice-cream." Then his father buys an ice-cream for him. When Wang Bing wants to eat it, a fly  flies to the ice-cream.
"Drive off  the fly,' says his father, "it's very dirty  ."But Wang Bing says with a smile. "You don't let me skate, but can you let him skate for a while ?"
Question: There are  _   people in Wang Bing's family.
Answer:
The article says that Wang Bing's mother is at work. This means there are only two people in the family--Wang Bing and his father (since he mentions cooking supper for just him and his son). Thus, there are 3 people in Wang Bing's family.
Mr. Bodhi is transporting some animals using a yacht across a river. He has 20 cows, 15 foxes and three times as many zebras as foxes. To balance the yacht to ensure a smooth sail across the river, the total number of animals in the yacht needs to be 100. If he decides to add sheep to the yacht to make the yacht sail-worthy, how many sheep did he add to the yacht?
The number of cows and foxes in the yacht is 20+15 = <<20+15=35>>35
Mr. Bodhi also has three times as many zebras as foxes in the yacht, equal to 3*15 = <<3*15=45>>45 zebras.
The number of animals in the yacht so far is 35+45 = <<35+45=80>>80
To balance the yacht, Mr. Bodhi needs to add 100-80= <<100-80=20>>20 sheep
#### 20
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**: Read the following article and answer the question.
Article: Wang Bing is a 12-year-old boy. He likes sports very much and does well in sports.
One afternoon, he comes out of the classroom and sees his father waiting for him at the school gate. He is very glad and he runs to his father. "Dad, please don't wait for me after school next time. I can go home by myself . I have grown up." says Wang Bing.
"Let's go," says the father, "I'll cook supper and you can do your homework at home: Mum is still at work."On their way home, Wang Bing sees some boys skating in a park. "Can I go and learn skating. Dad?" asks Wang Bing. "I'm sorry, my boy. You must go home and do your homework," answers his father, "but I can buy you an ice-cream." Then his father buys an ice-cream for him. When Wang Bing wants to eat it, a fly  flies to the ice-cream.
"Drive off  the fly,' says his father, "it's very dirty  ."But Wang Bing says with a smile. "You don't let me skate, but can you let him skate for a while ?"
Question: There are  _   people in Wang Bing's family.
Answer:
- **Domain Question**: Mr. Bodhi is transporting some animals using a yacht across a river. He has 20 cows, 15 foxes and three times as many zebras as foxes. To balance the yacht to ensure a smooth sail across the river, the total number of animals in the yacht needs to be 100. If he decides to add sheep to the yacht to make the yacht sail-worthy, how many sheep did he add to the yacht?
- **Transformed Domain Question**: 