Find "?" in the given expression
12% of 1200 + ? = 18% of 5400

Options

A. 654
B. 676
C. 828
D. 538

Answer

To solve the equation \( 12\% \text{ of } 1200 + ? = 18\% \text{ of } 5400 \), we will follow these steps:

### Step 1: Calculate \( 12\% \text{ of } 1200 \)
To find \( 12\% \) of \( 1200 \), we can use the formula:
\[ 12\% \text{ of } 1200 = \frac{12}{100} \times 1200 \]
Calculating this gives:
\[ = \frac{12 \times 1200}{100} = \frac{14400}{100} = 144 \]

### Step 2: Calculate \( 18\% \text{ of } 5400 \)
Next, we calculate \( 18\% \) of \( 5400 \):
\[ 18\% \text{ of } 5400 = \frac{18}{100} \times 5400 \]
Calculating this gives:
\[ = \frac{18 \times 5400}{100} = \frac{97200}{100} = 972 \]

### Step 3: Set up the equation
Now we can set up the equation using the values we calculated:
\[ 144 + ? = 972 \]

### Step 4: Solve for \( ? \)
To find \( ? \), we rearrange the equation:
\[ ? = 972 - 144 \]
Calculating this gives:
\[ ? = 828 \]

### Conclusion
Thus, the value of \( ? \) is \( 828 \).