How many students are enrolled in Ravi Shankar's music classes ? Statements :
I. If 3 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.
A :
If statement I is sufficient to answer the question asked, but statement II by itself is not sufficient to answer the question.
B :
If statement II by itself is sufficient to answer the question, but statement I alone is not sufficient to answer the question.
C :
If both statements I and II together are sufficient to answer the
question but neither statement by itself is sufficient to answer the
question.
D :
If the two statements, even when taken together, are not sufficient to answer the question.
Answer: C Let the number of students enrolled = x Statement I : x+3 >35 => x > 32. Statement II : x -4 < 30 => x < 34 Thus, from both the statement taken together , x = 33.
Q. No. 20:
What percentage of families, in the State of Jammu and Kashmir wh have an annual income of over Rs 2,50,000 and own a boats ? Statements : I. 28% of all families in the State have an annual income of over Rs 2,50,000. II. 40% of the families in the State with an annual income over Rs 2,50,000 own a boat.
A :
If statement I alone is sufficient but statement II alone is not sufficient to answer the question.
B :
If statement II alone is sufficient but statement I alone is not sufficient to answer the question.
C :
If both the statements I and II together are sufficient to answer the question but neither statement alone is sufficient to answer the question.
D :
If I and II together are not sufficient to answer the question and additional information is required.
Answer: C Statement I : 28% of the families have an annual income of over Rs 2,50,000. Statement II : 40% of the families have annual income more than Rs 250000 owns a boat. From both the statement, The families have annual income more than 2,50,000 and owns a boat => 28 * 40/100 = 11.2 %.
Q. No. 21:
What is the area of a rectangular field whose length is 40 metres ? Statements : I. A fence around the entire boundary of the field is 140 metres long. II. The field is more than 20 metres wide.
A :
If statement I alone is sufficient but statement II alone is not sufficient to answer the question.
B :
If statement II alone is sufficient but statement I alone is not sufficient to answer the question.
C :
If both the statements I and II together are sufficient to answer the
question but neither statement alone is sufficient to answer the
question.
D :
If I and II together are not sufficient to answer the question and additional information is required.
Answer: C Statement I :- The farmer had bought each cow = Rs 2,500. Statement II :- The farmer sold each cow = Rs 4,000 Thus, by taking both statement together, Profit on each cow = Rs 1,500.
Q. No. 23:
What is the maximum number of photographs that can be placed on photographic paper measuring 8 inches ? Statements :
I. Each photograph is 5 inches by 2 inches.
II. Only two photographs of 5 inches by 6 inches each fit on the last piece of photographic paper which has been printed.
A :
If statement I alone is sufficient but statement II alone is not sufficient to answer the question.
B :
If statement II alone is sufficient but statement I alone is not sufficient to answer the question.
C :
If both the statements I and II together are sufficient to answer the
question but neither statement alone is sufficient to answer the
question.
D :
If I and II together are not sufficient to answer the question and additional information is required.
Answer: A Statement I : clearly gives the area of the photographic plate covered by each of the photograph. Hence, we can easily find the number of photographs that can be placed on photographic paper. Statement II : only gives information about a certain portion of the photographic plate and it does not say anything about the whole photographic plate.
Q. No. 24:
A circulation manager of high school newspaper must deliver papers to students and teachers. Will an order of 3200 papers be sufficient ? Statements :
I. There are 15 times as many students as teachers in the school.
II. 50 of the students belong to lower classes and are not entitled to receive the newspaper.
A :
If statement I alone is sufficient but statement II alone is not sufficient to answer the question.
B :
If statement II alone is sufficient but statement I alone is not sufficient to answer the question.
C :
If both the statements I and II together are sufficient to answer the
question but neither statement alone is sufficient to answer the
question.
D :
If I and II together are not sufficient to answer the question and additional information is required.