Which one among the following is not a correct statement?

1.	Which one among the following is not a correct statement?
A.	The multiplicative inverse of zero does not exist.
B.	The product of a proper and improper fraction is always less than the improper fraction.
C.	All rational numbers cannot be represented on the number line.
D.	The sum of two proper fractions may be an improper fraction.
E.	None of these
Answer» D. The sum of two proper fractions may be an improper fraction.

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Which one among the following is not a correct statement?

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