`3" "5" "8" "13" "21" "34" "?`

Options

A. 72
B. 47
C. 55
D. 64

Answer

To solve the number series: 3, 5, 8, 13, 21, 34, ?, we need to identify the pattern in the series.

**Step 1: Identify the pattern**
- Let's look at the series: 3, 5, 8, 13, 21, 34.
- We can see that each number after the first two is the sum of the two preceding numbers.

**Step 2: Calculate the next number**
- Starting from the beginning:
- 3 + 5 = 8
- 5 + 8 = 13
- 8 + 13 = 21
- 13 + 21 = 34

Now, we need to find the next number after 34.

**Step 3: Find the next number using the identified pattern**
- The next number will be the sum of the last two numbers in the series:
- 21 + 34 = 55

Thus, the number that should come in place of the question mark is **55**.