What well Centre in place of the question mark (?) in the following questions?
` sqrt(432 div 24+123-20 )=?`

Options

A. `sqrt(11)`
B. `(121)^2`
C. `11`
D. `(11)^2`

Answer

To solve the expression \( \sqrt{432 \div 24 + 123 - 20} = ? \), we will follow these steps:

### Step 1: Perform the division
First, we need to divide \( 432 \) by \( 24 \).

\[ 432 \div 24 = 18 \]

### Step 2: Substitute the result back into the expression
Now, we substitute \( 18 \) back into the expression:

\[ \sqrt{18 + 123 - 20} \]

### Step 3: Perform the addition and subtraction
Next, we will perform the addition and subtraction inside the square root.

First, add \( 18 \) and \( 123 \):

\[ 18 + 123 = 141 \]

Now, subtract \( 20 \):

\[ 141 - 20 = 121 \]

### Step 4: Take the square root
Now we take the square root of \( 121 \):

\[ \sqrt{121} = 11 \]

### Final Answer
Thus, the value of the question mark (?) is:

\[ ? = 11 \]

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