General Knowledge Quizzes Sequence Series

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: 3, 4, 7, 8, 11, 12, ... What number should come next?

Option A):
7
Option B):
10
Option C):
14
Option D):
15

Correct Answer is Option D):
15

Explanation:
This alternating addition series begins with 3; then 1 is added to give 4; then 3 is added to give 7; then 1 is added, and so on.