ORKUT QUANT DATABASE(feedback) (Till August 26th)

1. If an integer is defined as (-1)^n then which of the following is applicable for integers a and b ?
i. a+b = a*b;
ii. (a+b)=(a)+(b);
iii. (a*b)=(a)*(b);

A. Only i.
B. Only ii.
C. Both i and ii
D. All the three
E. None

2. Col A: sqrt(2/5)
Col B: 1- 3/5

3. Given three points a, b, c. If a, b lie on the same line and if all these three points are at same distance between each other, then
A. None of the points lie on the same plane.
B. Only one point lies on the plane.
C. Two points lie on the plane.
D. More than two points lie on the plane.
E. None of the above.

4. Given a series -9, 10, -11, 12, -13. . . . . . . . . . .80
Col A: sum of first 27 numbers
Col B: -22

5. If 100 < Y
Col A: 2y
Col B: 400


7. Col A: 77!/78!
Col B: 87!/88!

8. If 2^n > 10^15n then which of the following options satisfies the condition
A. 30
B. 45
C. 60
D. 75

9. If x, y are the prime numbers greater than 10, then which of following must be even?
A. (x^2)*(y^2)
B. x^2 + x*y
C. 2*x*y + x
& so on....

10. Given a line in xy-plane with slope k = -3 & the points are (2, k), (-3, m)
Col A: k-m
Col B: -15

11. The approximate value of ((61.16)(.98)^2)/sqrt(401) is
A. 5
B. 4
C. 3
D. 2
E. 1