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In a row of children all facing north, what is R's position from the left? Statement I: R is 7th from the right end. Statement II: There are 15 children in the row.

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

Step-by-Step Solution

Position from left = total minus position from right plus 1. Neither figure alone is enough; together 15 - 7 + 1 = 9th from the left.
Answer: B) Both statements together are needed (neither alone is sufficient)

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