A rational number is a number which can be expressed in the form of \(\frac{p}{q}\) where \(p\) and \(q\) are integers and \(q \neq 0\). Irrational numbers are numbers which cannot be expressed in the form of \(\frac{p}{q}\).
 
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Observe the above data and answer the below questions.
 
1. A terminating decimal is a/an
 
25 is a/an
 
3. 514 has a
 
4. The decimal expansion of the number 531250 will terminate after  decimal places.