This aptitude test contains 27 questions about numbers and arithmetic relations. The given score does not correspond to your IQ score, but gives you an idea about your numeric intelligence level.
Three examples help you understand the rules of the test.
Example 1 / 3
Solution : 2 (because the red T means here "plus")
Example 2 / 3
Solution : 30 ( because the red > means here "plus")
Example 3 / 3
Solution : 34 (because the red line means here "double")