1 2 8 48 384 ?

Options

A. 3440
B. 3840
C. 3820
D. 3550

Answer

To solve the series: 1, 2, 8, 48, 384, ?, we need to identify the pattern in the sequence.

### Step-by-Step Solution:

1. **Identify the Pattern**:
- The first number is **1**.
- The second number is **2**.
- The third number is **8**.
- The fourth number is **48**.
- The fifth number is **384**.

2. **Find the Multiplication Factor**:
- From **1** to **2**:
\[ 1 \times 2 = 2 \]
- From **2** to **8**:
\[ 2 \times 4 = 8 \]
- From **8** to **48**:
\[ 8 \times 6 = 48 \]
- From **48** to **384**:
\[ 48 \times 8 = 384 \]

3. **Recognize the Multiplication Pattern**:
- The multiplication factors are **2, 4, 6, 8**.
- These factors increase by **2** each time.

4. **Calculate the Next Factor**:
- The next factor after **8** would be **10**.

5. **Calculate the Next Number in the Series**:
- To find the next number after **384**:
\[ 384 \times 10 = 3840 \]

6. **Conclusion**:
- The next number in the series is **3840**.

### Final Answer:
The value of the question mark is **3840**.