Answers IQ test

Question 1

120 cm 120 cm ? kg 18 kg
Which number should replace the question mark?


The scale is balanced. This is the case if the distances * weights are the same on both sides of the scale: A * weigth 1 = B * weight 2.

120 * ? = 120 * 18
==> 120 * ? = 2160
==> ? = 2160 / 120
==> ? = 18
120 cm 120 cm 18 kg Weight 1 Weight 2 18 kg A B

Question statistics

Question ID: FKV5n8KU
Main category: Numerical Reasoning
Sub category: Weight Scales
Difficulty Level: 1What is item difficulty?
Nr of times answered: 2048
Average IQ of people who answered this question: 94.67
Percentage of answers correct: 92.58%
Item Response Theory (IRT)What is Item Response Theory?
Item difficulty: 1 / 20What is item difficulty?
Discrimination: 2.08 What is item discrimination?
Point of Maximum Information: 52.19 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 2048 individual test takers who have answered this question.
Distractor AnalysisWhat is distractor analysis?
Average IQ of people who gave the correct answer: 96.38 Why does the average IQ of people who answer the questions differ per question?
Average IQ of people who gave an incorrect answer: 75.89

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