What approximate value will come in place of question mark (?) in the following questions
12449.5 + 7649.7 - 9874.8 + 8274.9 = ?

Options

A. 19200
B. 17000
C. 17500
D. 18500

Answer

To find the approximate value of the expression \( 12449.5 + 7649.7 - 9874.8 + 8274.9 \), we will round each number to the nearest hundred or thousand as appropriate, and then perform the calculations.

### Step-by-Step Solution:

1. **Round 12449.5**:
- The decimal part is 0.5, which is equal to or greater than 0.5.
- Therefore, we round up:
\[ 12449.5 \approx 12450 \]

2. **Round 7649.7**:
- The decimal part is 0.7, which is equal to or greater than 0.5.
- Therefore, we round up:
\[ 7649.7 \approx 7650 \]

3. **Round 9874.8**:
- The decimal part is 0.8, which is equal to or greater than 0.5.
- Therefore, we round up:
\[ 9874.8 \approx 9875 \]

4. **Round 8274.9**:
- The decimal part is 0.9, which is equal to or greater than 0.5.
- Therefore, we round up:
\[ 8274.9 \approx 8275 \]

5. **Substitute the rounded values into the expression**:
\[ 12450 + 7650 - 9875 + 8275 \]

6. **Perform the addition and subtraction step by step**:
- First, add the positive numbers:
\[ 12450 + 7650 + 8275 = 28475 \]
- Now subtract \( 9875 \):
\[ 28475 - 9875 = 18500 \]

7. **Final Result**:
\[ ? \approx 18500 \]

### Conclusion:
The approximate value that will come in place of question mark (?) is **18500**.