Question

The product of each positive integer with $-1$ is always ______.

• A. Positive
• B. Negative
• C. 0
• D. None of these

Answer 1

The correct option is B Negative

Let us take a positive integer $+2$ and multiply it with the given negative integer $-1$.

We know that the product of two integers with unlike signs is always negative.

Therefore, the product of the integers with unlike signs $+2$ and $-1$ is:

$(+2)\times (-1)=-(2\times 1)=-2$ which is a negative integer.

Hence, the positive integer whose product with $-1$ is always negative.