What approximate value will come in place of question mark in the following questions?
`5520-:12.01+sqrt226xx5.99=?`

Options

A. 350
B. 550
C. 500
D. 450

Answer

To solve the equation \( 5520 \div 12.01 + \sqrt{226} \times 5.99 = ? \), we will approximate the values for easier calculation.

### Step 1: Approximate the values
- Approximate \( 12.01 \) to \( 12 \).
- Approximate \( \sqrt{226} \). Since \( 226 \) is close to \( 225 \), we can use \( \sqrt{225} = 15 \).
- Approximate \( 5.99 \) to \( 6 \).

### Step 2: Rewrite the equation with approximations
Now, we can rewrite the equation as:
\[ 5520 \div 12 + 15 \times 6 \]

### Step 3: Calculate \( 5520 \div 12 \)
Perform the division:
\[ 5520 \div 12 = 460 \]

### Step 4: Calculate \( 15 \times 6 \)
Now, calculate the multiplication:
\[ 15 \times 6 = 90 \]

### Step 5: Add the results
Now, we add the two results together:
\[ 460 + 90 = 550 \]

### Final Result
Thus, the approximate value that will come in place of the question mark is:
\[ \boxed{550} \]