Answers

2014-04-08T10:40:52+05:30
Zero is rational number since 0/1 = 0 

It's also a whole number since whole numbers = {0,1,2,3,...} 

It's also an integer, since integers = {...,-3,-2,-1,0,1,2,3,...} <==== 0 is in this set. 

Zero is a real number. A real number is any number you can think of except imaginary numbers. Imaginary numbers are numbers such as √(-1). 
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2014-04-08T10:41:01+05:30
Zero is both an integer and a rational number
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