What will come in place of the question-mark (2) in the following questions?
`18 xx 15 xx ? = 6210`

Options

A. 21
B. 23
C. 27
D. 25

Answer

To solve the equation \( 18 \times 15 \times ? = 6210 \), we need to find the value of the question mark (let's denote it as \( x \)).

### Step-by-step Solution:

1. **Set up the equation**:
\[ 18 \times 15 \times x = 6210 \]

2. **Calculate \( 18 \times 15 \)**:
\[ 18 \times 15 = 270 \]

3. **Substitute back into the equation**:
\[ 270 \times x = 6210 \]

4. **Isolate \( x \)**:
To find \( x \), divide both sides by 270:
\[ x = \frac{6210}{270} \]

5. **Perform the division**:
To simplify \( \frac{6210}{270} \):
- First, simplify by dividing both the numerator and the denominator by 10:
\[ x = \frac{621}{27} \]

6. **Calculate \( 621 \div 27 \)**:
- Performing the division:
\[ 621 \div 27 = 23 \]

7. **Conclusion**:
Therefore, the value of the question mark is:
\[ x = 23 \]

### Final Answer:
The value that comes in place of the question mark is **23**.