`A B C D` is a square `A-=(1,2),B-=(3,-4)dot` If line `C D` passes through `(3,8),` then the midpoint of `C D` is (a) (2, 6) (b) `(6,2)` (c) `(2,5)` (d) `((28)/5,1/5)`

The fraction equivalent to 1 2/3 is (a) (10)/3 (b) 3/5 (c) (10)/6 (d) 6/(10)

The ends of a diagonal of a square are (2,-3) and (-1,1)dot Another vertex of the square can be (a) (-3/2,-5/2) (b) (5/2,1/2) (c) (1/2,5/2) (d) none of these

The vertices of a parallelogram A B C D are A(3,1),B(13 ,6),C(13 ,21), and D(3,16)dot If a line passing through the origin divides the parallelogram into two congruent parts, then the slope of the line is (a) (11)/(12) (b) (11)/8 (c) (25)/8 (d) (13)/8

The vertices of a parallelogram A B C D are A(3,1),B(13 ,6),C(13 ,21), and D(3,16)dot If a line passing through the origin divides the parallelogram into two congruent parts, then the slope of the line is (a) (11)/(12) (b) (11)/8 (c) (25)/8 (d) (13)/8

The sum of the coefficients in the monomials 3a^2b and -2a b^2 is (a)5 (b) -1 (c) 1 (d) -6

If (x-2)/3=(2x-1)/3-1, then x= (a) 2 (b) 4 (c) 6 (d) 8

A B C is an isosceles triangle. If the coordinates of the base are B(1,3) and C(-2,7) , the coordinates of vertex A can be (1,6) (b) (-1/2,5) (5/6,6) (d) none of these

If A is a matrix of order 3 and |A|=8 , then |a d j\ A|= (a) 1 (b) 2 (c) 2^3 (d) 2^6

If ^(n+1)C_3=2.^nC_2, then n= (A) 3 (B) 4 (C) 5 (D) 6

The coordinates of the point P dividing the line segment joining the points A(1,\ 3) and B(4,\ 6) in the ratio 2\ :1 are (2,\ 4) (b) (3,\ 5) (c) (4,\ 2) (d) (5,\ 3)