Doubt regarding quant question in big book section 7, test 1

GRE Quant Problem Solving
1

Isn’t X divided by lXl always one?

2

No, try X = -3 for instance.

3

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 ?

4

Copy the question here.

5

question 25

data interpretation
data interpretation746×783 73.9 KB

question 25 of this data interpretation question.

7

Divide the total national health expenditures by the per-capita (which means the expenses per person).

8

okay thank you . can u help me with this question?

doubt
doubt895×641 36.6 KB

9

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}

10

thank you