police AP Police Constable (Pre + Mains) Mock Test 2022 Quantitative Aptitude Ratio and Proportion Componendo or Dividendo
If \(\rm\frac{\sqrt{x+20}+\sqrt{x-1}}{\sqrt{x+20}-\sqrt{x-1}}=\frac{7}{3}\), then what is the value of \(\rm \sqrt{(x + 20)(x-1)}\) ?
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