1. If statement I alone is sufficient to answer the question, but statement II alone is not sufficient.
  2. If statement II alone is sufficient to answer the question, but statement I alone is not sufficient.
  3. If both the statements I and II together are needed to answer the question.
  4. If either statements I alone or statement II alone is sufficient to answer the question.
  5. If both the statements together are not sufficient to answer the question.
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1 Answers

Option 3 : If both the statements I and II together are needed to answer the question.

Statement I

If you multiply angle X with 45 and then take square root result will be equal to angle Z.

⇒ (X × 45)1/2 = Z

Statement II

Sum of angle in a triangle

⇒ X + Y + Z = 180°

⇒ X + Z = 180° – Y

⇒ X + Z = 180° – 90°

⇒ X + Z = 90°

⇒ X = 90° – Z

Using both the statement

⇒ (90 – Z) × 45 = Z2

⇒ 4050 – 45Z − Z2 = 0

Solving for z

⇒ Z = 45°

∴ Both the statements I and II together are needed to answer the question.
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