Mathematics · Data Sufficiency
Read the following question and decide which of the statements is sufficient to answer the question. Question: The average marks of X, Y and Z is 180. What is X's mark? Statements: I. Y and Z together scored 50 marks. II. X and Z together scored 60 marks.
- 1Statement I alone is sufficient while II alone is not sufficient to answer the question✓
- 2Either statement I alone or statement II alone is sufficient to answer the question
- 3Statement II alone is sufficient while I alone is not sufficient to answer the question
- 4Both statements I and II together are sufficient to answer the question
Correct answer
Statement I alone is sufficient while II alone is not sufficient to answer the question
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