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To solve this problem, we need to calculate the monthly water usage per household in country A, using the information provided.

### Given:
- **6 trillion gallons** of water (6,000,000,000,000 gallons) can supply all of country A's households for **six months**.
- There are **200 million households** in country A.

### Steps:
1. First, calculate the total water usage for all households in one month:
   \[
   \text{Total water usage for 6 months} = 6 \text{ trillion gallons}
   \]
   So, the water usage for one month is:
   \[
   \text{Total water usage for 1 month} = \frac{6 \text{ trillion gallons}}{6} = 1 \text{ trillion gallons}
   \]
   That means the entire country uses 1 trillion gallons of water per month.

2. Now, calculate the water usage per household:
   \[
   \text{Water usage per household per month} = \frac{1 \text{ trillion gallons}}{200 \text{ million households}}
   \]
   This is the same as dividing 1,000,000,000,000 gallons by 200,000,000 households.

Let me compute that.Each household in country A uses approximately **5,000 gallons** of water per month.

Would you like further details or have any questions?

Here are some related questions for you:
1. How much water would be used by all households in a year?
2. If the population of country A increased by 10%, how would that affect water usage per household?
3. How much water would be used in two months by a single household?
4. What would happen if the water supply dropped by 20%?
5. How would the results change if the number of households were 300 million?

**Tip:** When dealing with large numbers like trillions, converting to scientific notation can simplify calculations.

Based on this statement, determine how much water an average household uses each month. Assume that there are 200 million households in country A.

Learn how to calculate the monthly water usage per household in Country A based on a scenario with 6 trillion gallons of water over 6 months and 200 million households. This problem uses division and ratio concepts, ideal for students in Grades 6-8.

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