1. The reflection of a positive integer is obtained by reversing the digits. For example, 321 is the reflection of 123. The difference between a five-digit integer and its reflection must be divisible by which of the following?
A. 2
B. 4
C. 5
D. 6
E. 9
2.If x, y are positive integers
and (x^2 + y^2)/2 = xy, then
Col A: x
Col B: y
A. Column A is greater
B. Column B is greater
C. Column A equals Column B
D. Relationship Indeterminate
3. given that there are 10 balls and 10 bags and 3 balls are of same kind in how many ways these 10 balls can be arrangerd in 10 bags such that no bag should be emply
4.If x and y are both prime and greater than 2, then which of the following CANNOT be a divisor of xy?
(A) 2 (B) 3 (C) 11 (D) 15
5.In the two-digit number x, both the sum and the difference of its digits is 4. What is the value of x?
(A) 13 (B) 31 (C) 40 (D) 48
6.Column A X ≤ 8 Column B
2 + 3 + X 2 + 3 + 8
7.problem of trapezoidal(finding its area)
8.area of one figure having different shape of circle , triangle etc
9.Column A x > 0 and 0 < y < 1 Column B
xy x/y
10.Column A 6a = 5b a > 0 Column B
a b
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