In this question, a question is followed by two statements numbered (I) and…
2023
In this question, a question is followed by two statements numbered (I) and (II). You have to decide whether the data provided in the statements are sufficient to answer the question. Question: How many students of class 11th have got exactly 80% marks in Physics in annual examination, if total number of students in the class is 80? Statements: (I) 45 students of class 11th have got more than 80% marks in Physics. (II) 30 students of class 11th have got less than 80% marks in Physics.
- A.
Either statement (I) or (II) alone is sufficient
- B.
Both statements (I) and (II) together are necessary
- C.
Statement (I) alone is sufficient while (II) alone is not
- D.
Statement (II) alone is sufficient while (I) alone is not
Attempted by 420 students.
Show answer & explanation
Correct answer: B
Total students = 80. Statement (I): 45 students scored more than 80%. Statement (II): 30 students scored less than 80%. Using both statements together: Number of students who scored exactly 80% = total − (more than 80%) − (less than 80%) = 80 − 45 − 30 = 5