## Question 22

Which number should replace the question mark?

### Explanation

The number in the middle of the first triangle is found with the folowing calculation: 37 + -7 - 33 = -3
The number in the middle of the second triangle is found with the folowing calculation: : 30 + 2 - 18 = 14
Therefore the question mark should be replaced with the number: 2

### Question statistics

Overview
Question ID: nse8tTCF
Main category: Numerical Reasoning
Sub category: Math triangles
Difficulty Level: 16What is item difficulty?
Average IQ of people who answered this question: 120.24
Item Response Theory (IRT)What is Item Response Theory?
Item difficulty: 16 / 20What is item difficulty?
Discrimination: 2.83 What is item discrimination?
Point of Maximum Information: 122.61 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 1145 individual test takers who have answered this question.
Distractor AnalysisWhat is distractor analysis?
Average IQ of people who gave the correct answer: 124.14
Average IQ of people who gave an incorrect answer: 115.73