Question

Choose the correct options from the following:

• A. Product of a positive and negative integer is a negative integer
• B. Product of two negative integers is a negative integer
• C. Product of two positive integers is a positive integer
• D. Product of a positive and negative integer is a positive integer

Answer 1

Answer: (A), (C)

The correct options are
A

Product of a positive and negative integer is a negative integer

C

Product of two positive integers is a positive integer

When we multiply two numbers with the same sign we get plus and when we multiply two numbers with difference signs we get a minus as shown below:
(+) x (+) = (+)
(+) x (-) = (-)
(-) x (+) = (-)
(-) x (-) = (+)

$\therefore$ Product of a positive and negative integer is a negative integer.
For example: $3\times (-3)=(-9)$
Also, product of two positive integers is a positive integer.
For example: $3\times 3=9$