Question

The product of five rational numbers is positive. At most,
of these rational numbers can be negative.
1) Two
2) Three
3) Four
4) Five

Answer 1

It would be four. You can have four negative numbers and they will turn positive. For example, if you had -2 x -2 x -4 x -4 = 64. 64 would be positive because two negative numbers equal a positive number.