Price Index Number by Simple Aggregate Method is given by ................ .

Answer

To find the Price Index Number (PIN) using the Simple Aggregate Method, we use the following formula:

### Step-by-Step Solution:

1. **Understand the Variables**:
- Let \( P_1 \) be the current price of the items.
- Let \( P_0 \) be the base price of the items.

2. **Write the Formula**:
The formula for the Price Index Number using the Simple Aggregate Method is given by:
\[ \text{Price Index Number} = \left( \frac{\sum P_1}{\sum P_0} \right) \times 100 \]

3. **Calculate the Summation**:
- Calculate the total of the current prices (\( \sum P_1 \)).
- Calculate the total of the base prices (\( \sum P_0 \)).

4. **Substitute the Values**:
Substitute the calculated values of \( \sum P_1 \) and \( \sum P_0 \) into the formula.

5. **Multiply by 100**:
Finally, multiply the result by 100 to get the Price Index Number.

### Example:
If the current prices of items are \( P_1 = [50, 60, 70] \) and the base prices are \( P_0 = [40, 50, 60] \):

- Calculate \( \sum P_1 = 50 + 60 + 70 = 180 \)
- Calculate \( \sum P_0 = 40 + 50 + 60 = 150 \)

Now, substitute these values into the formula:
\[ \text{Price Index Number} = \left( \frac{180}{150} \right) \times 100 = 120 \]

### Final Result:
The Price Index Number is 120.

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