A store owner buys pound of grapes for 80 cents and sells it for a dollar. What percent of the selling price of grapes is the store owner's profit?

Options

A. 0.2
B. 0.25
C. 0.4
D. 0.8

Answer

To find the percentage of the selling price that is the store owner's profit, we can follow these steps:

### Step 1: Identify the Selling Price and Cost Price
- The selling price (SP) of the grapes is $1.00.
- The cost price (CP) of the grapes is $0.80.

### Step 2: Calculate the Profit
- Profit can be calculated using the formula:
\[ \text{Profit} = \text{Selling Price} - \text{Cost Price} \]
- Substituting the values:
\[ \text{Profit} = 1.00 - 0.80 = 0.20 \]

### Step 3: Calculate the Profit Percentage
- The profit percentage is calculated using the formula:
\[ \text{Profit Percentage} = \left( \frac{\text{Profit}}{\text{Selling Price}} \right) \times 100 \]
- Substituting the values:
\[ \text{Profit Percentage} = \left( \frac{0.20}{1.00} \right) \times 100 = 20\% \]

### Final Answer
The store owner's profit is **20%** of the selling price of the grapes.

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