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HEC ETC - USAT CS Entry Test - Mathematics - Number Systems - Quiz 3

Practice 10 high yield MCQs on Mathematics from Chapter Number Systems for USAT CS Entry Test. After submission, get instant results with correct answers and detailed explanations. This is Quiz 3 of the series.

21. What is the sum of first n natural numbers?



22. What is the sum of 1+2+3+4+5?



23. What is the inductive step in mathematical induction?



24. Which set is a subset of rational numbers?



25. What is the union of rational and irrational numbers?



26. Which is the set of natural numbers?



27. What is the modulus of a complex number a+bi?



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Instructions: Select one answer per question. After submitting, you will see your score, correct answers, and explanations.

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