Friday, August 22, 2008

22 august gre quats question

1. There is a junior and senior team who have taken tests. The average of junior team members who have taken tests are 88 and the average of senior team members is 92
Col A: the average of senior and junior team
Col B: 90

2. Given 0.61 Col A: square root(x)
Col B: 0.73

3. A toy manufturer company manufactures 20,000 toys and exports ¾ and 1/10 and donates some (xxx) value for charitable trust.
Find the number of toys left in the company?

4. There are rooms from 101 to 550 inclusive in which the starting rooms are numbered from 1, 2, 3 and the waiting rooms are numbered from 4,5,6. What is the probability that the rooms 4, 5, 6 will be choosed randomly?

5. One side of a triangle is given as 6 and the triangle is equilateral triangle & another triangle is joined with it whose side is 10
Col A: perimeter of polygon
Col B: 30
(Question is similar to this)

6. Given a line in xy plane with slope k = -1/2
Col A: x-intercept
Col B: y-intercept

7. If x < y then
Col A: x^2+x+1
Col B: y^2+y+1

8. Which of the following number is nearer to sqrt(171)?
A.12
B.13
C.14
D.15
E.16

9. When a number is divided by 12, the remainder is 5. What is the remainder when the square of that number is divided by 8?

10. The area of circle of radius 'r' is twice the the area of triangle then r in terms of h is?

11. Col A: 0.001^-1 + 0.999^-1
Col B: 0.002^-1 + 0.998^-1

12. If the selling price of a product is 25% lesser than its list price and 40% greater than its cost price, then what is the list price of the product if the cost price = 30 ?
A. 52
B. 53
C. 56
& so on.....

13. If x and y are prime numbers greater than 10 then which of the following is an even integer?
A. x^2+xy
B. x^y +2
C. xy +2
D. 2xy +xy

14. If z>1 & z(x+y+z) = zx+zy+z
Col A: z
Col B: 0

15. If x<2 & y<3
Col A: xy
Col B: 6

16. The average salary of n employees is 32000, average salary of another different group of n-1 employees is 33000
Col A: The average salary of 2n-1 employees
Col B: 32500

17. The range of 'p' numbers is 9.5 and the range for 'q' numbers is 21.5, what is the least range value when p and q are combined together?

18. A series was given as 1, -3, 5,-7 ,9,-11,13............ In this series odd numbers are negative integers. Find the sum of first 25 numbers in the series?

19. If n is an integer then
Col A: (-1)^6n+9
Col B: (-1)^2n-1

20. A trapezoid is given whose area is 12, length of it is given as 6 & height of it is given as 3. Find the perimeter of trapezoid?

5 comments:

Anonymous said...

1. C
2. A
3. ?
4. 1/3
5. ?
6. D
7. D
8. 13
9. 1
10. r=h/pie
11. B
12. C
13. ?
14. D
15. B
16. D
17. 21.5
18. ?
19. A

Anonymous said...

1. There is a junior and senior team who have taken tests. The average of junior team members who have taken tests are 88 and the average of senior team members is 92
Col A: the average of senior and junior team
Col B: 90

Ans: D (It can be anywhere between 88 and 92)

2. Given 0.61 Col A: square root(x)
Col B: 0.73

Ans: A (square of .73 is less than .6)

3. A toy manufturer company manufactures 20,000 toys and exports ¾ and 1/10 and donates some (xxx) value for charitable trust.
Find the number of toys left in the company?

Ans : 20000-15000-2000-(xxx)

4. There are rooms from 101 to 550 inclusive in which the starting rooms are numbered from 1, 2, 3 and the waiting rooms are numbered from 4,5,6. What is the probability that the rooms 4, 5, 6 will be choosed randomly?

Can anyone explain this?

5. One side of a triangle is given as 6 and the triangle is equilateral triangle & another triangle is joined with it whose side is 10
Col A: perimeter of polygon
Col B: 30
(Question is similar to this)

Ans: D Cannot be determined unless specied how the triangle is joined.

6. Given a line in xy plane with slope k = -1/2
Col A: x-intercept
Col B: y-intercept

Ans: D The equation derived is x+2y=Constant. X and Y will have different values satisfying this equations.




8. Which of the following number is nearer to sqrt(171)?
A.12
B.13
C.14
D.15
E.16

Ans : B

9. When a number is divided by 12, the remainder is 5. What is the remainder when the square of that number is divided by 8?

Ans:

(12x+5)^2/8
(144x ^2+2 120x+25)/8
25/8
Remainder=1 (Rest of the terms are divisible by Cool


10. The area of circle of radius 'r' is twice the the area of triangle then r in terms of h is?

Ans: pie * r^2= 2 * 0.5 * b * h (assuming h=height and b=base of the triangle)

r=sqrt(bh/pie)

11. Col A: 0.001^-1 + 0.999^-1
Col B: 0.002^-1 + 0.998^-1

Ans : A A=10^6/999 > 10^6/1996

12. If the selling price of a product is 25% lesser than its list price and 40% greater than its cost price, then what is the list price of the product if the cost price = 30 ?
A. 52
B. 53
C. 56
& so on.....

Ans : C (56) S.P=1.4 * 30 =42 0.75 * L.P=42 L.P=56





13. If x and y are prime numbers greater than 10 then which of the following is an even integer?
A. x^2+xy
B. x^y +2
C. xy +2
D. 2xy +xy

Ans : A x^2(odd) + x* y(odd) = odd+odd=even

14. If z>1 & z(x+y+z) = zx+zy+z
Col A: z
Col B: 0

Ans: D

15. If x<2 & y<3
Col A: xy
Col B: 6

Ans: B x * y < 2* 3 < 6

16. The average salary of n employees is 32000, average salary of another different group of n-1 employees is 33000
Col A: The average salary of 2n-1 employees
Col B: 32500

Ans : A The avg of the 2n-1 employees(i.e. n + n- 1) will be tending towards the value of n i.e 32000 i.e it will be <32500 because n> n-1.

17. The range of 'p' numbers is 9.5 and the range for 'q' numbers is 21.5, what is the least range value when p and q are combined together?

Can anyone explain this

18. A series was given as 1, -3, 5,-7 ,9,-11,13............ In this series odd numbers are negative integers. Find the sum of first 25 numbers in the series?

Ans : 1,5,9,13….(13 terms) sum= 1 + (13-1) * 4 =49
-3,-7,-11….(12 terms) sum= -3 +(12-1) * -4 =-47

Total sum of 25 terms is 2




19. If n is an integer then
Col A: (-1)^6n+9
Col B: (-1)^2n-1

Ans : C (-1)^odd = -1 Hence A=B for all integer values of n.

20. A trapezoid is given whose area is 12, length of it is given as 6 & height of it is given as 3. Find the perimeter of trapezoid?

Can anyone explain this?

Anonymous said...

16. The average salary of n employees is 32000, average salary of another different group of n-1 employees is 33000
Col A: The average salary of 2n-1 employees
Col B: 32500

Ans : B The avg of the 2n-1 employees(i.e. n + n- 1) will be tending towards the value of n i.e 32000 i.e it will be <32500 because n> n-1.


18. A series was given as 1, -3, 5,-7 ,9,-11,13............ In this series odd numbers are negative integers. Find the sum of first 25 numbers in the series?

Ans : 1,5,9,13….(13 terms) sum= 13/2(2*1 + (13-1) * 4) =325
-3,-7,-11….(12 terms) sum= 12/2(2*-3 +(12-1) * -4) =-300

Total sum of 25 terms is 25

Anonymous said...

There is a junior and senior team who have taken tests. The average of junior team members who have taken tests are 88 and the average of senior team members is 92
Col A: the average of senior and junior team
Col B: 90

Answer should be D....If you don't know the number of participants in Junior and Senior Team.

Anonymous said...

20. if it was a rectangle, the area would be 18 so you must subract 6
which is a triangle with height 3 and base 4 and then a hypotenuse of 5. Thus, the sides are 2,5,6,3 which equals 16.

Friday, August 22, 2008

22 august gre quats question

1. There is a junior and senior team who have taken tests. The average of junior team members who have taken tests are 88 and the average of senior team members is 92
Col A: the average of senior and junior team
Col B: 90

2. Given 0.61 Col A: square root(x)
Col B: 0.73

3. A toy manufturer company manufactures 20,000 toys and exports ¾ and 1/10 and donates some (xxx) value for charitable trust.
Find the number of toys left in the company?

4. There are rooms from 101 to 550 inclusive in which the starting rooms are numbered from 1, 2, 3 and the waiting rooms are numbered from 4,5,6. What is the probability that the rooms 4, 5, 6 will be choosed randomly?

5. One side of a triangle is given as 6 and the triangle is equilateral triangle & another triangle is joined with it whose side is 10
Col A: perimeter of polygon
Col B: 30
(Question is similar to this)

6. Given a line in xy plane with slope k = -1/2
Col A: x-intercept
Col B: y-intercept

7. If x < y then
Col A: x^2+x+1
Col B: y^2+y+1

8. Which of the following number is nearer to sqrt(171)?
A.12
B.13
C.14
D.15
E.16

9. When a number is divided by 12, the remainder is 5. What is the remainder when the square of that number is divided by 8?

10. The area of circle of radius 'r' is twice the the area of triangle then r in terms of h is?

11. Col A: 0.001^-1 + 0.999^-1
Col B: 0.002^-1 + 0.998^-1

12. If the selling price of a product is 25% lesser than its list price and 40% greater than its cost price, then what is the list price of the product if the cost price = 30 ?
A. 52
B. 53
C. 56
& so on.....

13. If x and y are prime numbers greater than 10 then which of the following is an even integer?
A. x^2+xy
B. x^y +2
C. xy +2
D. 2xy +xy

14. If z>1 & z(x+y+z) = zx+zy+z
Col A: z
Col B: 0

15. If x<2 & y<3
Col A: xy
Col B: 6

16. The average salary of n employees is 32000, average salary of another different group of n-1 employees is 33000
Col A: The average salary of 2n-1 employees
Col B: 32500

17. The range of 'p' numbers is 9.5 and the range for 'q' numbers is 21.5, what is the least range value when p and q are combined together?

18. A series was given as 1, -3, 5,-7 ,9,-11,13............ In this series odd numbers are negative integers. Find the sum of first 25 numbers in the series?

19. If n is an integer then
Col A: (-1)^6n+9
Col B: (-1)^2n-1

20. A trapezoid is given whose area is 12, length of it is given as 6 & height of it is given as 3. Find the perimeter of trapezoid?

5 comments:

Anonymous said...

1. C
2. A
3. ?
4. 1/3
5. ?
6. D
7. D
8. 13
9. 1
10. r=h/pie
11. B
12. C
13. ?
14. D
15. B
16. D
17. 21.5
18. ?
19. A

Anonymous said...

1. There is a junior and senior team who have taken tests. The average of junior team members who have taken tests are 88 and the average of senior team members is 92
Col A: the average of senior and junior team
Col B: 90

Ans: D (It can be anywhere between 88 and 92)

2. Given 0.61 Col A: square root(x)
Col B: 0.73

Ans: A (square of .73 is less than .6)

3. A toy manufturer company manufactures 20,000 toys and exports ¾ and 1/10 and donates some (xxx) value for charitable trust.
Find the number of toys left in the company?

Ans : 20000-15000-2000-(xxx)

4. There are rooms from 101 to 550 inclusive in which the starting rooms are numbered from 1, 2, 3 and the waiting rooms are numbered from 4,5,6. What is the probability that the rooms 4, 5, 6 will be choosed randomly?

Can anyone explain this?

5. One side of a triangle is given as 6 and the triangle is equilateral triangle & another triangle is joined with it whose side is 10
Col A: perimeter of polygon
Col B: 30
(Question is similar to this)

Ans: D Cannot be determined unless specied how the triangle is joined.

6. Given a line in xy plane with slope k = -1/2
Col A: x-intercept
Col B: y-intercept

Ans: D The equation derived is x+2y=Constant. X and Y will have different values satisfying this equations.




8. Which of the following number is nearer to sqrt(171)?
A.12
B.13
C.14
D.15
E.16

Ans : B

9. When a number is divided by 12, the remainder is 5. What is the remainder when the square of that number is divided by 8?

Ans:

(12x+5)^2/8
(144x ^2+2 120x+25)/8
25/8
Remainder=1 (Rest of the terms are divisible by Cool


10. The area of circle of radius 'r' is twice the the area of triangle then r in terms of h is?

Ans: pie * r^2= 2 * 0.5 * b * h (assuming h=height and b=base of the triangle)

r=sqrt(bh/pie)

11. Col A: 0.001^-1 + 0.999^-1
Col B: 0.002^-1 + 0.998^-1

Ans : A A=10^6/999 > 10^6/1996

12. If the selling price of a product is 25% lesser than its list price and 40% greater than its cost price, then what is the list price of the product if the cost price = 30 ?
A. 52
B. 53
C. 56
& so on.....

Ans : C (56) S.P=1.4 * 30 =42 0.75 * L.P=42 L.P=56





13. If x and y are prime numbers greater than 10 then which of the following is an even integer?
A. x^2+xy
B. x^y +2
C. xy +2
D. 2xy +xy

Ans : A x^2(odd) + x* y(odd) = odd+odd=even

14. If z>1 & z(x+y+z) = zx+zy+z
Col A: z
Col B: 0

Ans: D

15. If x<2 & y<3
Col A: xy
Col B: 6

Ans: B x * y < 2* 3 < 6

16. The average salary of n employees is 32000, average salary of another different group of n-1 employees is 33000
Col A: The average salary of 2n-1 employees
Col B: 32500

Ans : A The avg of the 2n-1 employees(i.e. n + n- 1) will be tending towards the value of n i.e 32000 i.e it will be <32500 because n> n-1.

17. The range of 'p' numbers is 9.5 and the range for 'q' numbers is 21.5, what is the least range value when p and q are combined together?

Can anyone explain this

18. A series was given as 1, -3, 5,-7 ,9,-11,13............ In this series odd numbers are negative integers. Find the sum of first 25 numbers in the series?

Ans : 1,5,9,13….(13 terms) sum= 1 + (13-1) * 4 =49
-3,-7,-11….(12 terms) sum= -3 +(12-1) * -4 =-47

Total sum of 25 terms is 2




19. If n is an integer then
Col A: (-1)^6n+9
Col B: (-1)^2n-1

Ans : C (-1)^odd = -1 Hence A=B for all integer values of n.

20. A trapezoid is given whose area is 12, length of it is given as 6 & height of it is given as 3. Find the perimeter of trapezoid?

Can anyone explain this?

Anonymous said...

16. The average salary of n employees is 32000, average salary of another different group of n-1 employees is 33000
Col A: The average salary of 2n-1 employees
Col B: 32500

Ans : B The avg of the 2n-1 employees(i.e. n + n- 1) will be tending towards the value of n i.e 32000 i.e it will be <32500 because n> n-1.


18. A series was given as 1, -3, 5,-7 ,9,-11,13............ In this series odd numbers are negative integers. Find the sum of first 25 numbers in the series?

Ans : 1,5,9,13….(13 terms) sum= 13/2(2*1 + (13-1) * 4) =325
-3,-7,-11….(12 terms) sum= 12/2(2*-3 +(12-1) * -4) =-300

Total sum of 25 terms is 25

Anonymous said...

There is a junior and senior team who have taken tests. The average of junior team members who have taken tests are 88 and the average of senior team members is 92
Col A: the average of senior and junior team
Col B: 90

Answer should be D....If you don't know the number of participants in Junior and Senior Team.

Anonymous said...

20. if it was a rectangle, the area would be 18 so you must subract 6
which is a triangle with height 3 and base 4 and then a hypotenuse of 5. Thus, the sides are 2,5,6,3 which equals 16.