GRE Math Problem 33

 In a certain company, the ratio of the number of women employees to the number of men employees is 3 to 2. If the total number of employees is 240, then how many of the employees are men?
(A) 40
(B) 48
(C) 96
(D) 144
(E) 160


Solution for GRE Math Problem 32:
The surface area of the cube with edge of 3 is 6x3²=54 square inches. The surface area of the smaller cube with the edge of 1 will be 6x1²=6 square inches. From one cube 3x3x3 we'll get 3³=27 cubes 1x1x1, their total surface area will be 27x6=162 square inches. the unpainter area is 162-54=108<100
Answer:Column A is greater.

GRE Math Problem 15

If b books can be purchased for d dollars, how many books can be purchased for m dollars?

1. 
2. bdm
3. 
4. 
5. 

Solution for GRE Math Problem 14:

By opening the brackets we get x+y+7 in Column A, which is bigger than x+y-7 in Column B.


Answer:A

Math Problem 9

A student conducts an experiment in biology lab and discovers that the ratio of the number of insects in a given population having characteristic X to the number of insects in the population not having characteristic X is 5:3, and that of the insects having characteristic X are male insects. What proportion of the total insect population are male insects having the characteristic X?

(A)1
(B)
(C)
(D)
(E)

Solution for GRE Math Problem 8:

Total steps down: 4+6+2=12
Total steps up: 3+2+9=14
So, he is standing by 14-12=2 steps above

Answer:(A) 2 steps above