Answers IQ test

Question 13

75 45 15 2 56 56 ? 0
Which number should replace the question mark?

Explanation

The number in the middle of the first triangle is found with the folowing calculation: (75 - 45) / 15 = 2
The number in the middle of the second triangle is found with the folowing calculation: : (56 - 56) / 14 = 0
Therefore the question mark should be replaced with the number: 14

Question statistics

Overview
Question ID: gYhHVcrM
Main category: Numerical Reasoning
Sub category: Math triangles
Difficulty Level: NoneWhat is item difficulty?
Nr of times answered: 10
Percentage of answers correct: 10.00%
Item Response Theory (IRT)What is Item Response Theory?
Item difficulty: None / 20What is item difficulty?
Discrimination: 120.17 What is item discrimination?
Point of Maximum Information: 142.49 What is Point of Maximum Information?
Item Characteristic Curve (ICC)
This Item Characteristic Curve shows the probability that a person with a given IQ level will correctly answer this question. This graph is based on the answers and the IQ levels of 10 individual test takers who have answered this question.

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