in the following number series only one is wrong . Find out the wrong number .
`3" "5" "13" "43" "176" "891" "5353`

Options

A. 5
B. 13
C. 43
D. 176

Answer

To solve the problem of finding the wrong number in the series `3, 5, 13, 43, 176, 891, 5353`, we will analyze the pattern in the series step by step.

### Step 1: Identify the pattern
We can observe how each number in the series relates to the previous number.

- From 3 to 5:
\[ 3 \times 1 + 2 = 5 \]

- From 5 to 13:
\[ 5 \times 2 + 3 = 13 \]

- From 13 to 43:
\[ 13 \times 3 + 4 = 43 \]

### Step 2: Continue the pattern
Now, we will apply the same pattern to find the next number after 43.

- From 43 to the next number:
\[ 43 \times 4 + 5 = 172 + 5 = 177 \]

### Step 3: Compare with the given series
The next number in the series should be 177, but the series gives us 176 instead.

### Step 4: Identify the wrong number
Thus, the wrong number in the series is **176**. The correct number should be **177**.

### Final Answer
The wrong number in the series is **176**.

---