UPSC CDS Math Number System Questions

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Question : 57 of 102
 
Marks: +1, -0
Consider the following statements :
1. Every natural number is a real number.
2. Every real number is a rational number.
3. Every integer is a real number.
4. Every rational number is a real number.
Which of the above statements are correct?
[2016 CDS-I]
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