Product of a negative integer and a positive integer is a positive integer
Solution:
The given statement is: Product of a negative integer and a positive integer is a positive integer. To prove whether this statement is true or false let us substitute the value of a and b in a × b = ab.
Let us consider a = -4 and b = 7.
On substituting the values of a and b in a × b we have,
-4 × 7 = -28
In this case the product is a negative integer. Applying integer rule (-) × (+) = -
Therefore, the product of a negative integer and a positive integer is not a positive integer.
✦ Try This: State whether the statement is true or false. -71 × 90 gives the product as a positive integer.
We can apply integer rules and the multiplication rules to identify whether -71 × 90 gives the product as a positive integer or not.
☛ Also Check: NCERT Solutions for Class 7 Maths Chapter 1
NCERT Exemplar Class 7 Maths Chapter 1 Exercise Problem 90
Product of a negative integer and a positive integer is a positive integer.
Summary:
After applying the integer rules along with considering an illustration we examined that the product of a negative integer and a positive integer is not a positive integer.Hence the given statement is false.
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