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Which of the following is universal set for integers?

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in Mathematics - Class 11 by (789k points)
Which of the following is universal set for integers?

(a) Natural numbers

(b) Whole numbers

(c) Rational numbers

(d) Prime numbers

The question was asked in an interview for internship.

This interesting question is from Universal Set topic in portion Sets of Mathematics – Class 11

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Right answer is (c) Rational numbers

To elaborate: Since set of rational numbers is superset for set of integers so it can be a universal set for integers. Rest are subset of integers so they can not act as the universal set for set of integers.

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