Isn’t X divided by lXl always one?
No, try X = -3 for instance.
thank you . I have another doubt. How to solve the data interpretation question 25 (page 98) of test 2, section 5 of the gre big book ?
Copy the question here.
Divide the total national health expenditures by the per-capita (which means the expenses per person).
So A goes in and B goes out. So in that case, if x is the rate for B,
2\times 96 - x \times 96 = 64
96(2 - x) = 64
2 - x = \frac{2}{3}
x = \frac{4}{3}
thank you