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Q.

 -30 is a


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a

Negative rational number

b

Positive rational number

c

Either positive or negative rational number

d

None of these 

answer is D.

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Detailed Solution

Given expression is -30 .
Now,  -30  is undefined since something cannot be divided by 0.
Which means that it is neither a negative rational number nor a positive rational number. So option 4 is correct.
 
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