**Directions:**

In below series, look for the degree and direction of change between the numbers. In other words, do the numbers increase or decrease, and by how much

**Question:**

Look at this series: 7, 10, 8, 11, 9, 12, ... What number should come next?

**Option A):**

13**Option B):**

12**Option C):**

7**Option D):**

10

**Correct Answer is Option D):**

10

**Explanation:**

This is a simple alternating addition and subtraction series. In the first pattern, 3 is added; in the second, 2 is subtracted.