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International UAS Exam, example questions of mathematical skills

Read the questions carefully and select the answer that you think is correct. There is only one correct answer in each question.

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Example question 1

The number inside the triangle is determined based on the numbers at its vertices. What number should be inside the fourth triangle?

picture 1

Example question 2

Leon is six years older than his sister Anna. The age of their mother is four times the age of Anna. If the age of Leon is denoted by x, how should we denote the age of their mother?