Multiple choice

In each of the following questions (I) and (II) equations are given. You have to solve them and \ I. (x^2 - 8x + 15 = 0) \ II. (y^2 = 25) \ Give answer-

  1. If x > y

  2. If x ≥ y

  3. If x < y

  4. If x ≤ y

  5. If x = y or relationship can not be determined
Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

x² - 8x + 15 = 0 factors to (x-3)(x-5) = 0, so x = 3 or x = 5. y² = 25 gives y = 5 or y = -5. Testing combinations: when x=3,y=5: xy; when x=5,y=5: x=y; when x=5,y=-5: x>y. Since we get different relationships (xy), the relationship cannot be uniquely determined.

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