What will come in place of the question-mark (2) in the following questions?
`3*44 +5*22 + 7*23 + 5*24 = ?`

Options

A. `23*34`
B. `21*13`
C. `25*57`
D. `20*05`

Answer

To solve the equation \(3 \times 44 + 5 \times 22 + 7 \times 23 + 5 \times 24\), we will follow these steps:

### Step 1: Calculate each term separately.
1. Calculate \(3 \times 44\):
\[ 3 \times 44 = 132 \]

2. Calculate \(5 \times 22\):
\[ 5 \times 22 = 110 \]

3. Calculate \(7 \times 23\):
\[ 7 \times 23 = 161 \]

4. Calculate \(5 \times 24\):
\[ 5 \times 24 = 120 \]

### Step 2: Add all the results together.
Now, we will add all the calculated values:
\[ 132 + 110 + 161 + 120 \]

### Step 3: Perform the addition step by step.
1. Add \(132 + 110\):
\[ 132 + 110 = 242 \]

2. Add \(242 + 161\):
\[ 242 + 161 = 403 \]

3. Finally, add \(403 + 120\):
\[ 403 + 120 = 523 \]

### Final Result:
Therefore, the value that comes in place of the question mark is:
\[ \text{?} = 523 \]