What will come in place of question mark (?) in the given number series questions?
8 11 18 33 64 ?

Options

A. 127
B. 113
C. 123
D. 119

Answer

To solve the number series: 8, 11, 18, 33, 64, ?, we will analyze the pattern step by step.

### Step-by-Step Solution:

1. **Identify the Pattern**:
- Start with the first number: 8.
- The next number is 11.
- To find out how we got from 8 to 11, we can see that:
- Multiply 8 by 2: \( 8 \times 2 = 16 \)
- Then subtract 5: \( 16 - 5 = 11 \)

2. **Continue the Pattern**:
- Now, let's go from 11 to 18:
- Multiply 11 by 2: \( 11 \times 2 = 22 \)
- Then subtract 4: \( 22 - 4 = 18 \)

3. **Next Transition**:
- Now, from 18 to 33:
- Multiply 18 by 2: \( 18 \times 2 = 36 \)
- Then subtract 3: \( 36 - 3 = 33 \)

4. **Following the Pattern**:
- From 33 to 64:
- Multiply 33 by 2: \( 33 \times 2 = 66 \)
- Then subtract 2: \( 66 - 2 = 64 \)

5. **Final Step to Find the Question Mark**:
- Now, we need to find the next number after 64:
- Multiply 64 by 2: \( 64 \times 2 = 128 \)
- Then subtract 1: \( 128 - 1 = 127 \)

Thus, the number that comes in place of the question mark is **127**.

### Final Answer:
The answer is **127**.