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If (x) is a natural number and (x\le 5), what are the possible values?

Answer and explanation

Correct answer: (x\in{1,2,3,4,5})

The direct answer is option A: \\(x\\in\\{1,2,3,4,5\\}\\). A natural number is taken here as a positive counting number: 1, 2, 3, and so on. The condition \\(x\\le5\\) allows every natural number up to and including 5. Therefore the complete set is \\(\\{1,2,3,4,5\\}\\). Option A is correct. Option B includes 0; under the convention used in this question, 0 is not a natural number. Option C begins at 2 and includes 6, so it omits 1 and violates \\(x\\le5\\). Option D omits 5, even though equality is allowed. The symbol \\(\\le\\) includes the endpoint. Always check the textbook convention for natural numbers, but here the supplied options and explanation clearly use the convention starting at 1.

Related tags

Linear InequalitiesNatural NumbersSolution Set

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