Topic promise: By the end of this topic, you’d know how mathematical operations impact positive and negative numbers
Topic duration: 7 minutes
All numbers can be divided into 3 categories:
- 0 (0 is neither positive, nor negative)
Positive number: Any number to the right of 0 on number line
Negative number: Any number to the left of 0 on number line
x is positive is equivalent to saying x > 0
x is negative is equivalent to saying x < 0
x is neither positive, nor negative is equivalent to saying x = 0
pos x pos = pos
pos x neg = neg
neg x neg = pos
(same for division)
GMAT Integer Properties Pos Neg - Practice
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Question 1 of 2
If the quotient is less than 0, which of the following cannot be true?CorrectIncorrect
You could try with sample numbers. Can a and b both be positive or negative?
Question 2 of 2
Which of the following are positive?CorrectIncorrect