`14.995 xx 8.001 xx 20.991 = ?`

Options

A. 1950
B. 2520
C. 2200
D. 1520

Answer

To solve the problem \( 14.995 \times 8.001 \times 20.991 \) using approximation, we will round each number to one decimal place and then perform the multiplication.

### Step-by-Step Solution:

1. **Round the Numbers:**
- \( 14.995 \) rounds to \( 15.0 \)
- \( 8.001 \) rounds to \( 8.0 \)
- \( 20.991 \) rounds to \( 21.0 \)

2. **Set Up the Approximation:**
- Now, we will multiply the rounded numbers:
\[ 15 \times 8 \times 21 \]

3. **Multiply the First Two Numbers:**
- Calculate \( 15 \times 8 \):
\[ 15 \times 8 = 120 \]

4. **Multiply the Result with the Third Number:**
- Now, multiply \( 120 \) by \( 21 \):
\[ 120 \times 21 = 2520 \]

5. **Final Result:**
- Therefore, the approximate value of \( 14.995 \times 8.001 \times 20.991 \) is \( 2520 \).

### Final Answer:
\[ \text{The approximate result is } 2520. \]