353 354 351 356 349 ?

Options

A. 348
B. 358
C. 338
D. 385

Explanation

To solve the series: 353, 354, 351, 356, 349, ?, we will analyze the pattern in the sequence step by step.

### Step-by-Step Solution:

1. **Identify the given series**:
The series is: 353, 354, 351, 356, 349.

2. **Calculate the differences between consecutive terms**:
- From 353 to 354: \( 354 - 353 = +1 \)
- From 354 to 351: \( 351 - 354 = -3 \)
- From 351 to 356: \( 356 - 351 = +5 \)
- From 356 to 349: \( 349 - 356 = -7 \)

So, the differences are: +1, -3, +5, -7.

3. **Observe the pattern in the differences**:
The differences alternate between addition and subtraction, and they are increasing by 2 each time:
- First difference: +1 (which is \( +1 \))
- Second difference: -3 (which is \( -3 \))
- Third difference: +5 (which is \( +5 \))
- Fourth difference: -7 (which is \( -7 \))

The pattern in the differences can be summarized as:
- \( +1, -3, +5, -7 \)

4. **Determine the next difference**:
Following the pattern, the next difference should be +9 (the next odd number after +7).

5. **Calculate the next term**:
The last term we have is 349. We will add the next difference (+9) to this term:
\[ 349 + 9 = 358 \]

6. **Conclusion**:
Therefore, the next term in the series is **358**.

### Final Answer:
The required number is **358**.

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