Question

Sign of the product of $231$ negative integers and $9$ positive integers is

• A. negative
• B. positive
• C. $0$
• D. none

Answer 1

Answer: (A)

negative

Since $231$ is an odd number, the product of $231$ negative integers will be negative.

The product of all positive integers is a positive number. Hence, the product of $9$ positive integers will be a positive integer.

Therefore, the product of the two integers ($231$ negative and $9$ positive) of unlike signs will be negative.