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Directions: The following questions are accompanied by three statements (A) or (I), (B) or (II), and (C) or (III). You have to determine which statement(s) is/are sufficient/necessary to answer the questions.

Q:

What is the inradius of a right-angled triangle?
A. The area of the triangle is known.
B. Any two sides of the triangle are known.
C. The perimeter of the triangle is known.

  • 1
    B alone is sufficient
  • 2
    A and C together are sufficient
  • 3
    Any one statement is sufficient
  • 4
    Either B alone or A and C together are sufficient
  • 5
    All together are necessary
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Answer : 4. "Either B alone or A and C together are sufficient"

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