Thursday, October 2, 2008

2nd October Gre Quants Question

Quant:

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

11 comments:

Anonymous said...

1) A
2)cannot be determined
3)use GP formula
4)80
5)?
6)81
7)1
CoolB

Anonymous said...

5) 108

Anonymous said...

hey sunny can u shed the light for solving 5th question...i am perplexed with my approach....

need to get in to brainstorming....

Anonymous said...

pradey,de 6TH ONE IS 24 RIGHT 4*3*2...HOW IS IT 81 EXPLAIN???

Anonymous said...

let the total fixed cost be X
cost per head if 40 persons charter =x/40
and cost per head for 36 persons is x/36
x/36-x/40=12(given)
solve for x u get 432
and 432 /40 is 108

Anonymous said...

6) repetition allowed so 3^4=81....

Anonymous said...

Can anyone explain how to solve the venn diagram problem...720 students...

Anonymous said...

The ans for 4 should be 40.

Just see the venn diagram. Find the common area for three regions
remember here, p+q+r=150, You will find the ans 40

Explanation for 6
Fisrt house can be painted in 3 ways, second house can be painted in 3 ways, so on
so, for 4 houses
Number of ways for painting
3*3*3*3=81

Unknown said...

how can u see d options im unable to see the option. can any 1n say me d exact quants preparation topics

Anonymous said...

sorry deena answer for da 4th will be 80 only . total 300+350+200=850 n actual members r 720 n in 720 , 100 r neither so total will be 620.
so 850-620=230.
in dat 150 for only two den 230-150=80 r commen for three

Vinayak Hande said...

ans 0f 4 should be 40.

Thursday, October 2, 2008

2nd October Gre Quants Question

Quant:

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

11 comments:

Anonymous said...

1) A
2)cannot be determined
3)use GP formula
4)80
5)?
6)81
7)1
CoolB

Anonymous said...

5) 108

Anonymous said...

hey sunny can u shed the light for solving 5th question...i am perplexed with my approach....

need to get in to brainstorming....

Anonymous said...

pradey,de 6TH ONE IS 24 RIGHT 4*3*2...HOW IS IT 81 EXPLAIN???

Anonymous said...

let the total fixed cost be X
cost per head if 40 persons charter =x/40
and cost per head for 36 persons is x/36
x/36-x/40=12(given)
solve for x u get 432
and 432 /40 is 108

Anonymous said...

6) repetition allowed so 3^4=81....

Anonymous said...

Can anyone explain how to solve the venn diagram problem...720 students...

Anonymous said...

The ans for 4 should be 40.

Just see the venn diagram. Find the common area for three regions
remember here, p+q+r=150, You will find the ans 40

Explanation for 6
Fisrt house can be painted in 3 ways, second house can be painted in 3 ways, so on
so, for 4 houses
Number of ways for painting
3*3*3*3=81

Unknown said...

how can u see d options im unable to see the option. can any 1n say me d exact quants preparation topics

Anonymous said...

sorry deena answer for da 4th will be 80 only . total 300+350+200=850 n actual members r 720 n in 720 , 100 r neither so total will be 620.
so 850-620=230.
in dat 150 for only two den 230-150=80 r commen for three

Vinayak Hande said...

ans 0f 4 should be 40.