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A person is initially facing north. Which direction is he facing at the end? Statement I: He turns 90° clockwise, then 180°, then 90° anticlockwise. Statement II: He makes two turns in total. Which statement(s) is/are sufficient to answer?

Competition practiceData Sufficiency
  • AStatement I alone is sufficient but Statement II alone is not
  • BBoth statements together are needed (neither alone is sufficient)
  • CEither statement alone is sufficient
  • DStatement II alone is sufficient but Statement I alone is not

Step-by-Step Solution

From I: north → 90° CW = east → 180° = west → 90° ACW = south, so he faces south. II gives no turn amounts or directions.
Answer: A) Statement I alone is sufficient but Statement II alone is not

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