Question

Paulo raised $900 in three months to pay for his trip to a band competition. Which rule best applies to determine how much he raised each month?
1.The product of two positive integers is a positive integer.
2.The product of two integers with different signs is a negative integer.
3.The quotient of two integers with different signs is a negative integer.
4.The quotient of two positive integers is a positive integer

Answer 1

You're doing a division here (900/3=300), it is "natural" to choose #4, but the statement #4 is false, namely the quotient of two positive integers is positive, but not necessarily an integer! #1 is correct, but it relates to multiplication, which is not what you do here.
Choose one of the two evils.