• Numerical Ability - Quadratic Equations
Question

y² – x² = 112
y – x = 8

  • A) X > Y
  • B) X < Y
  • C) X ≥ Y
  • D) X ≤ Y
  • E) X = Y or relation cannot be established
Solution

B. X < Y
Explanation:
y² – x² = 112
y – x = 8
(y + x) (y – x) = 112
(y + x) 8 = 112
y + x = 14
y – x = 8
y = 11 and x = 3

B. X < Y
Explanation:
y² – x² = 112
y – x = 8
(y + x) (y – x) = 112
(y + x) 8 = 112
y + x = 14
y – x = 8
y = 11 and x = 3
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