`80% "of" 450+20% "of" 850=?`

Options

A. 540
B. 580
C. 530
D. 560

Explanation

To solve the question `80% of 450 + 20% of 850`, we will break it down step by step.

### Step 1: Calculate 80% of 450
To find 80% of 450, we can use the formula:
\[ \text{Percentage} \times \text{Total} = \frac{\text{Percentage}}{100} \times \text{Total} \]
So,
\[ 80\% \text{ of } 450 = \frac{80}{100} \times 450 \]
Calculating this gives:
\[ = 0.8 \times 450 = 360 \]

### Step 2: Calculate 20% of 850
Next, we calculate 20% of 850 using the same formula:
\[ 20\% \text{ of } 850 = \frac{20}{100} \times 850 \]
Calculating this gives:
\[ = 0.2 \times 850 = 170 \]

### Step 3: Add the two results together
Now, we add the results from Step 1 and Step 2:
\[ 360 + 170 = 530 \]

### Final Answer
Thus, the final answer is:
\[ \boxed{530} \]

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