In these a question is followed by two statements (I) and (II). Choose a, if statement (I) is sufficient to answer the question asked, but statement (II) by itself is not sufficient to answer the question. Choose b, if statement (II) by itself is sufficient to answer the question, but statement (I) alone is not sufficient to answer the question. Choose c, if both the statements (I) and (II) together are sufficient to answer the question but neither statement by itself is sufficient to answer the question. Choose d, if the two statements, even when taken together, are not sufficient to answer the question.
Q8. How many students are enrolled in Ravi's music class?
I. If three more students sign up and none drop out, there will be more than 35 students in the class.
II. If four students drop out of the class and no more sign up, fewer than 30 students will be enrolled in the class.
C
Let N be the number of students
I. Implies N+ 3 > 35 = N> 32, which is not enough to determine the number of students.
II. Means N— 4 < 30 = N< 34 again, by itself (II) is not sufficient. Combining (I) and (II), N= 33