# Vector mains 2018 Q.11. The sides of a rhombus ABCD are parallel to the lines, x - y + 2 = 0 and 7x - y + 3 = 0. If the diagonals of the rhombus intersect at P (1, 2) and the vertex A (different from the origin) is on the y-axis, then the ordinate of A is : 1. 2 2. $\frac{7}{2}$ 3. $\frac{5}{2}$ 4. $\frac{7}{4}$

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