state gov UP Police Constable Mock Test Series 2025 Quantitative Aptitude Ratio and Proportion Compound Ratios
If p : q : r = (y - z) : (z - x) : (x - y), then the value of px + qy + rz is
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If p : q : r = (y - z) : (z - x) : (x - y), then the value of px + qy + rz is