What will come in place of question mark(?) in the given number series?
4 3 5 14 55 ?

Options

A. 285
B. 274
C. 319
D. 315

Answer

To solve the number series: 4, 3, 5, 14, 55, ?, we will analyze the pattern step by step.

### Step 1: Identify the pattern
We start with the first two numbers in the series: 4 and 3.

- To go from 4 to 3:
- Multiply 4 by 1 (4 * 1 = 4)
- Then subtract 1 (4 - 1 = 3)

### Step 2: Move to the next pair
Now, we look at the next two numbers: 3 and 5.

- To go from 3 to 5:
- Multiply 3 by 2 (3 * 2 = 6)
- Then subtract 1 (6 - 1 = 5)

### Step 3: Continue the pattern
Next, we analyze the transition from 5 to 14.

- To go from 5 to 14:
- Multiply 5 by 3 (5 * 3 = 15)
- Then subtract 1 (15 - 1 = 14)

### Step 4: Analyze the next transition
Now, we look at the transition from 14 to 55.

- To go from 14 to 55:
- Multiply 14 by 4 (14 * 4 = 56)
- Then subtract 1 (56 - 1 = 55)

### Step 5: Predict the next number
Now we need to find the next number after 55.

- To go from 55 to the next number (let's call it ?):
- Multiply 55 by 5 (55 * 5 = 275)
- Then subtract 1 (275 - 1 = 274)

### Conclusion
Thus, the number that will come in place of the question mark (?) is **274**.

### Final Answer
The answer is 274.