## Question 24

Which number should replace the question mark?

### Explanation

The number in the middle of the first triangle is found with the folowing calculation: 37 * 2 - 27 = 47
The number in the middle of the second triangle is found with the folowing calculation: : 17 * 22 - -15 = 389
Therefore the question mark should be replaced with the number: 17

### Question statistics

Overview
Question ID: UYXSnufg
Main category: Numerical Reasoning
Sub category: Math triangles
Difficulty Level: 20What is item difficulty?
Average IQ of people who answered this question: 135.38
Item Response Theory (IRT)What is Item Response Theory?
Item difficulty: 20 / 20What is item difficulty?
Discrimination: 3.45 What is item discrimination?
Point of Maximum Information: 137.56 What is Point of Maximum Information?
##### Item Characteristic Curve (ICC)
Distractor AnalysisWhat is distractor analysis?
Average IQ of people who gave the correct answer: 141.68
Average IQ of people who gave an incorrect answer: 126.38

Time spent: you used 59 seconds to answer this question