What will come in place of the question mark (?) in the following questions ?
`[(15.5xx28)-:16-1230-:240]=?xx5`

Options

A. 4.4
B. 4
C. 5
D. 4.2

Answer

To solve the equation \([(15.5 \times 28) \div 16 - (1230 \div 240)] = ? \times 5\), we will follow the order of operations (BODMAS/BIDMAS).

### Step-by-Step Solution:

1. **Calculate \(15.5 \times 28\)**:
\[ 15.5 \times 28 = 434 \]

**Hint**: Multiply the two numbers directly to find the product.

2. **Divide the result by 16**:
\[ 434 \div 16 = 27.125 \]

**Hint**: Division can be done by either long division or using a calculator for precision.

3. **Calculate \(1230 \div 240\)**:
\[ 1230 \div 240 = 5.125 \]

**Hint**: Simplify the division by reducing the fraction if possible, or use a calculator.

4. **Subtract the two results**:
\[ 27.125 - 5.125 = 22 \]

**Hint**: Align the decimal points to ensure accurate subtraction.

5. **Set the equation to find the question mark**:
\[ 22 = ? \times 5 \]

**Hint**: To isolate the question mark, divide both sides by 5.

6. **Solve for the question mark**:
\[ ? = \frac{22}{5} = 4.4 \]

**Hint**: Perform the division to find the value of the question mark.

### Final Answer:
The value that comes in place of the question mark (?) is **4.4**.