Let a, b, x, y be real numbers such that a² + b² = 25, x² +... — Quantitative Ability 2019

Question 469 Quantitative Ability 2019 Medium MCQ +3.00 marks · -1.00 negative

Let a, b, x, y be real numbers such that a² + b² = 25, x² + y² = 169 and ax + by = 65. If k = ay − bx, then

A. k = 0 B. k > 5/13 C. k = 5/13 D. 0 < k ≤ 5/13

Click an option to submit your answer.

← Previous Next →