Decide whether the data given in the statements is sufficient to answer the…
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Decide whether the data given in the statements is sufficient to answer the question.
Question: What is the total number of students in Class XII?
Statement A: The average marks of students of Class XII is 24.
Statement B: The number of students who passed in Class XII was 20.
- A.
Statement A alone is sufficient, but statement B alone is not sufficient.
- B.
Statement B alone is sufficient, but statement A alone is not sufficient.
- C.
Neither statement alone nor both statements together are sufficient.
- D.
Either statement A alone or statement B alone is sufficient.
Attempted by 75 students.
Show answer & explanation
Correct answer: C
Correct answer: Neither statement alone nor both statements together are sufficient.
Statement A: Average marks = 24 gives a relation, but without total marks the number of students cannot be calculated.
Statement B: 20 students passed, but the number of failed students is unknown. So total students cannot be found.
Together: The average marks and passed count still do not connect to the total number of students. More information is needed.