GRE quant database till oct 2nd

1. Given Set A = 1, 2, 3, 4, 5,...m & Set B = 1, 2, 3, ...n where 'n' is even and 'm' is odd.
Col A: Percentage of odd numbers in A
Col B: Percentage of even numbers in B

2. If l(3x-2)l < 8 then find the value of x?

3. If a1, a2, a3.........an are such that each term is 2 times the preceeding term & p1, p2, p3.......pn are such tht each term is 3 times the preceeding term. If a1= xxxx(some value) and p1 = xxxx(some value) then find the least number of n such that Pn > An?

4. In a school, there are 720 people. If 300 opted for course x, 350 for y, 200 for z, 100 opted for no course and 150 opted for exactly two courses then what is the number of people who opted for all the three courses?

5. A group can charter a particular aircraft at a fixed total cost.If 36 people charter aircraft rather than 40,loss per person is 12$. What is cost per person if 40 people charter it?

6. On a street, there are four houses which are to be painted. There is a choice of three colors, and one house will be painted with a single color. In how many ways can the houses be painted?
A. 4
B. 24
C. 64
D. 81

7. (1/2 - 1/3) + (1/3 - 1/4) + (1/4 + 1/2) = ?

8. If -2 < x < -1, then
Col A: 1/x3
Col B: 1/x