GMAT Question > A teacher distributed pens, pencils, and eras...
Related Test
A teacher distributed pens, pencils, and erasers among the students of his class, such that all students got an equal number of pens, an equal number of pencils, and an equal number of erasers. If no pens, pencils, or erasers remained with the teacher, how many students were in the class?
(1) Each student got pens, pencils, and erasers in the ratio 3:4:5, respectively.
(2) The teacher distributed a total of 27 pens, 36 pencils, and 45 erasers.
(2) The teacher distributed a total of 27 pens, 36 pencils, and 45 erasers.
- a)Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient to answer the question asked;
- b)Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient to answer the question asked;
- c)BOTH statements (1) and (2) TOGETHER are sufficient to answer the question asked,but NEITHER statement ALONE is sufficient;
- d)EACH statement ALONE is sufficient to answer the question asked;
- e)Statements (1) and (2) TOGETHER are NOT sufficient to answer the question asked, and additional data are needed.
Correct answer is option 'E'. Can you explain this answer?
Answers
We are given that a teacher gave an equal number of pens, an equal number of pencils, and an equal number of erasers to each student of this class.
You must NOT assume:
(Number of pens per student) = (Numbers of pencils per student) = (Number of erasers per student)
The number of pens that a student - say Student A - got may be different from the number of pencils and from the number of erasers he got; however, every student in the class got as many pens as Student A gets (and likewise, as many pencils and erasers as Student A gets).
Let the total number of students in the class be n, and each student got x number of pens, y number of pencils, and z number of erasers. We have to find out n.
Statement 1:
Each student got pens, pencils, and erasers in the ratio 3:4:5, respectively.
Thus, we have:
x : y : z = 3 : 4 : 5
⇒ x = 3k, y = 4k, z = 5k,where k is a constant of proportionality.
However, we have no information on n. - Insufficient
⇒ x = 3k, y = 4k, z = 5k,where k is a constant of proportionality.
However, we have no information on n. - Insufficient
Statement 2:
We know that the teacher distributed a total of 27 pens, 36 pencils, and 45 erasers.
Thus, nx = 27,ny = 36,nz = 45
We have no information about x, y, z.
We have no information about x, y, z.
Hence, we cannot determine the value of n. - Insufficient
Statement 1 & 2 together:
Substituting the values of x, or y, or z from Statement 1 in the information from Statement 2, we have:
nx = 27 = 3k
n = 9k
Since k is unknown, we cannot determine n.
n = 9k
Since k is unknown, we cannot determine n.
The valid values of k can be 1, 3, and 9, rendering the values of n = 9, 3, and 1. (k cannot be greater than 9 because n, the number of students, cannot be a fraction. And, k cannot be a fraction, for example, 1/2 etc., because we know that x = 3k, y = 4k, & z = 5k. Since x, y, & z denote the number of items, they cannot be fractions. For x, y, & z to have integer values, k must be an integer.)
No unique value of n. - Insufficient
 | View courses related to this question | Explore GMAT courses |
Explore GMAT courses View courses related to this question |  |
| 1 Crore+ students have signed up on EduRev. Have you? |
Similar GMAT Doubts
Question Description
A teacher distributed pens, pencils, and erasers among the students of his class, such that all students got an equal number of pens, an equal number of pencils, and an equal number of erasers. If no pens, pencils, or erasers remained with the teacher, how many students were in the class?(1) Each student got pens, pencils, and erasers in the ratio 3:4:5, respectively.(2) The teacher distributed a total of 27 pens, 36 pencils, and 45 erasers.a)Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient to answer the question asked;b)Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient to answer the question asked;c)BOTH statements (1) and (2) TOGETHER are sufficient to answer the question asked,but NEITHER statement ALONE is sufficient;d)EACH statement ALONE is sufficient to answer the question asked;e)Statements (1) and (2) TOGETHER are NOT sufficient to answer the question asked, and additional data are needed.Correct answer is option 'E'. Can you explain this answer? for GMAT 2023 is part of GMAT preparation. The Question and answers have been prepared according to the GMAT exam syllabus. Information about A teacher distributed pens, pencils, and erasers among the students of his class, such that all students got an equal number of pens, an equal number of pencils, and an equal number of erasers. If no pens, pencils, or erasers remained with the teacher, how many students were in the class?(1) Each student got pens, pencils, and erasers in the ratio 3:4:5, respectively.(2) The teacher distributed a total of 27 pens, 36 pencils, and 45 erasers.a)Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient to answer the question asked;b)Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient to answer the question asked;c)BOTH statements (1) and (2) TOGETHER are sufficient to answer the question asked,but NEITHER statement ALONE is sufficient;d)EACH statement ALONE is sufficient to answer the question asked;e)Statements (1) and (2) TOGETHER are NOT sufficient to answer the question asked, and additional data are needed.Correct answer is option 'E'. Can you explain this answer? covers all topics & solutions for GMAT 2023 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A teacher distributed pens, pencils, and erasers among the students of his class, such that all students got an equal number of pens, an equal number of pencils, and an equal number of erasers. If no pens, pencils, or erasers remained with the teacher, how many students were in the class?(1) Each student got pens, pencils, and erasers in the ratio 3:4:5, respectively.(2) The teacher distributed a total of 27 pens, 36 pencils, and 45 erasers.a)Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient to answer the question asked;b)Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient to answer the question asked;c)BOTH statements (1) and (2) TOGETHER are sufficient to answer the question asked,but NEITHER statement ALONE is sufficient;d)EACH statement ALONE is sufficient to answer the question asked;e)Statements (1) and (2) TOGETHER are NOT sufficient to answer the question asked, and additional data are needed.Correct answer is option 'E'. Can you explain this answer?.
A teacher distributed pens, pencils, and erasers among the students of his class, such that all students got an equal number of pens, an equal number of pencils, and an equal number of erasers. If no pens, pencils, or erasers remained with the teacher, how many students were in the class?(1) Each student got pens, pencils, and erasers in the ratio 3:4:5, respectively.(2) The teacher distributed a total of 27 pens, 36 pencils, and 45 erasers.a)Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient to answer the question asked;b)Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient to answer the question asked;c)BOTH statements (1) and (2) TOGETHER are sufficient to answer the question asked,but NEITHER statement ALONE is sufficient;d)EACH statement ALONE is sufficient to answer the question asked;e)Statements (1) and (2) TOGETHER are NOT sufficient to answer the question asked, and additional data are needed.Correct answer is option 'E'. Can you explain this answer? for GMAT 2023 is part of GMAT preparation. The Question and answers have been prepared according to the GMAT exam syllabus. Information about A teacher distributed pens, pencils, and erasers among the students of his class, such that all students got an equal number of pens, an equal number of pencils, and an equal number of erasers. If no pens, pencils, or erasers remained with the teacher, how many students were in the class?(1) Each student got pens, pencils, and erasers in the ratio 3:4:5, respectively.(2) The teacher distributed a total of 27 pens, 36 pencils, and 45 erasers.a)Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient to answer the question asked;b)Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient to answer the question asked;c)BOTH statements (1) and (2) TOGETHER are sufficient to answer the question asked,but NEITHER statement ALONE is sufficient;d)EACH statement ALONE is sufficient to answer the question asked;e)Statements (1) and (2) TOGETHER are NOT sufficient to answer the question asked, and additional data are needed.Correct answer is option 'E'. Can you explain this answer? covers all topics & solutions for GMAT 2023 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A teacher distributed pens, pencils, and erasers among the students of his class, such that all students got an equal number of pens, an equal number of pencils, and an equal number of erasers. If no pens, pencils, or erasers remained with the teacher, how many students were in the class?(1) Each student got pens, pencils, and erasers in the ratio 3:4:5, respectively.(2) The teacher distributed a total of 27 pens, 36 pencils, and 45 erasers.a)Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient to answer the question asked;b)Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient to answer the question asked;c)BOTH statements (1) and (2) TOGETHER are sufficient to answer the question asked,but NEITHER statement ALONE is sufficient;d)EACH statement ALONE is sufficient to answer the question asked;e)Statements (1) and (2) TOGETHER are NOT sufficient to answer the question asked, and additional data are needed.Correct answer is option 'E'. Can you explain this answer?.
Solutions for A teacher distributed pens, pencils, and erasers among the students of his class, such that all students got an equal number of pens, an equal number of pencils, and an equal number of erasers. If no pens, pencils, or erasers remained with the teacher, how many students were in the class?(1) Each student got pens, pencils, and erasers in the ratio 3:4:5, respectively.(2) The teacher distributed a total of 27 pens, 36 pencils, and 45 erasers.a)Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient to answer the question asked;b)Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient to answer the question asked;c)BOTH statements (1) and (2) TOGETHER are sufficient to answer the question asked,but NEITHER statement ALONE is sufficient;d)EACH statement ALONE is sufficient to answer the question asked;e)Statements (1) and (2) TOGETHER are NOT sufficient to answer the question asked, and additional data are needed.Correct answer is option 'E'. Can you explain this answer? in English & in Hindi are available as part of our courses for GMAT.
Download more important topics, notes, lectures and mock test series for GMAT Exam by signing up for free.
Here you can find the meaning of A teacher distributed pens, pencils, and erasers among the students of his class, such that all students got an equal number of pens, an equal number of pencils, and an equal number of erasers. If no pens, pencils, or erasers remained with the teacher, how many students were in the class?(1) Each student got pens, pencils, and erasers in the ratio 3:4:5, respectively.(2) The teacher distributed a total of 27 pens, 36 pencils, and 45 erasers.a)Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient to answer the question asked;b)Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient to answer the question asked;c)BOTH statements (1) and (2) TOGETHER are sufficient to answer the question asked,but NEITHER statement ALONE is sufficient;d)EACH statement ALONE is sufficient to answer the question asked;e)Statements (1) and (2) TOGETHER are NOT sufficient to answer the question asked, and additional data are needed.Correct answer is option 'E'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
A teacher distributed pens, pencils, and erasers among the students of his class, such that all students got an equal number of pens, an equal number of pencils, and an equal number of erasers. If no pens, pencils, or erasers remained with the teacher, how many students were in the class?(1) Each student got pens, pencils, and erasers in the ratio 3:4:5, respectively.(2) The teacher distributed a total of 27 pens, 36 pencils, and 45 erasers.a)Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient to answer the question asked;b)Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient to answer the question asked;c)BOTH statements (1) and (2) TOGETHER are sufficient to answer the question asked,but NEITHER statement ALONE is sufficient;d)EACH statement ALONE is sufficient to answer the question asked;e)Statements (1) and (2) TOGETHER are NOT sufficient to answer the question asked, and additional data are needed.Correct answer is option 'E'. Can you explain this answer?, a detailed solution for A teacher distributed pens, pencils, and erasers among the students of his class, such that all students got an equal number of pens, an equal number of pencils, and an equal number of erasers. If no pens, pencils, or erasers remained with the teacher, how many students were in the class?(1) Each student got pens, pencils, and erasers in the ratio 3:4:5, respectively.(2) The teacher distributed a total of 27 pens, 36 pencils, and 45 erasers.a)Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient to answer the question asked;b)Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient to answer the question asked;c)BOTH statements (1) and (2) TOGETHER are sufficient to answer the question asked,but NEITHER statement ALONE is sufficient;d)EACH statement ALONE is sufficient to answer the question asked;e)Statements (1) and (2) TOGETHER are NOT sufficient to answer the question asked, and additional data are needed.Correct answer is option 'E'. Can you explain this answer? has been provided alongside types of A teacher distributed pens, pencils, and erasers among the students of his class, such that all students got an equal number of pens, an equal number of pencils, and an equal number of erasers. If no pens, pencils, or erasers remained with the teacher, how many students were in the class?(1) Each student got pens, pencils, and erasers in the ratio 3:4:5, respectively.(2) The teacher distributed a total of 27 pens, 36 pencils, and 45 erasers.a)Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient to answer the question asked;b)Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient to answer the question asked;c)BOTH statements (1) and (2) TOGETHER are sufficient to answer the question asked,but NEITHER statement ALONE is sufficient;d)EACH statement ALONE is sufficient to answer the question asked;e)Statements (1) and (2) TOGETHER are NOT sufficient to answer the question asked, and additional data are needed.Correct answer is option 'E'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice A teacher distributed pens, pencils, and erasers among the students of his class, such that all students got an equal number of pens, an equal number of pencils, and an equal number of erasers. If no pens, pencils, or erasers remained with the teacher, how many students were in the class?(1) Each student got pens, pencils, and erasers in the ratio 3:4:5, respectively.(2) The teacher distributed a total of 27 pens, 36 pencils, and 45 erasers.a)Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient to answer the question asked;b)Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient to answer the question asked;c)BOTH statements (1) and (2) TOGETHER are sufficient to answer the question asked,but NEITHER statement ALONE is sufficient;d)EACH statement ALONE is sufficient to answer the question asked;e)Statements (1) and (2) TOGETHER are NOT sufficient to answer the question asked, and additional data are needed.Correct answer is option 'E'. Can you explain this answer? tests, examples and also practice GMAT tests.
Top Courses for GMAT
Download free EduRev App
Track your progress, build streaks, highlight & save important lessons and more!
(Scan QR code)
|
|
We are given that a teacher gave an equal number of pens, an equal number of pencils, and an equal number of erasers to each student of this class.You must NOT assume:(Number of pens per student) = (Numbers of pencils per student) = (Number of erasers per student)The number of pens that a student - say Student A - got may be different from the number of pencils and from the number of erasers he got; however, every student in the class got as many pens as Student A gets (and likewise, as many pencils and erasers as Student A gets).Let the total number of students in the class be n, and each student got x number of pens, y number of pencils, and z number of erasers. We have to find out n.Statement 1:Each student got pens, pencils, and erasers in the ratio 3:4:5, respectively.Thus, we have:x : y : z = 3 : 4 : 5⇒ x = 3k, y = 4k, z = 5k,where k is a constant of proportionality.However, we have no information on n. - InsufficientStatement 2:We know that the teacher distributed a total of 27 pens, 36 pencils, and 45 erasers.Thus, nx = 27,ny = 36,nz = 45We have no information about x, y, z.Hence, we cannot determine the value of n. - InsufficientStatement 1 & 2 together:Substituting the values of x, or y, or z from Statement 1 in the information from Statement 2, we have:nx = 27 = 3kn = 9kSince k is unknown, we cannot determine n.The valid values of k can be 1, 3, and 9, rendering the values of n = 9, 3, and 1. (k cannot be greater than 9 because n, the number of students, cannot be a fraction. And, k cannot be a fraction, for example, 1/2 etc., because we know that x = 3k, y = 4k, & z = 5k. Since x, y, & z denote the number of items, they cannot be fractions. For x, y, & z to have integer values, k must be an integer.)No unique value of n. - Insufficient
|
© EduRev
|
Education Revolution
|
Follow Us
|
