State True or False: The three types of Index numbers are i) Price Index Number, ii) Quantity Index Number, iii) Value Index Number.

Answer

To determine whether the statement is true or false, we need to analyze the three types of index numbers mentioned: Price Index Number, Quantity Index Number, and Value Index Number.

### Step-by-Step Solution:

1. **Understanding Index Numbers**:
- Index numbers are statistical measures designed to show changes in a variable or a group of related variables over time. They are used to measure the relative change in price, quantity, or value of a commodity.

2. **Types of Index Numbers**:
- **Price Index Number**: This measures the relative change in the price of a commodity over time. It indicates how much the price of a commodity has increased or decreased compared to a base period.
- **Quantity Index Number**: This measures the relative change in the quantity of a commodity produced or consumed over time. It shows how much the quantity has changed compared to a base period.
- **Value Index Number**: This measures the relative change in the total value of a commodity, which is calculated as the product of price and quantity. It shows how the overall value has changed compared to a base period.

3. **Conclusion**:
- Since all three types mentioned—Price Index Number, Quantity Index Number, and Value Index Number—are indeed recognized types of index numbers, the statement is **True**.

### Final Answer:
**True**

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