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01 Jul 2025, 10:14
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Out of 180 gym members, is the number of members who attend yoga sessions greater than the number who attend strength training sessions?
(1) Every member who attends yoga sessions also attends at least one other type of session.
=> unknown relationship with member who attented strength training sessions. in other words, x people attends yoga session could attend not only strength training sessions but any other type of sessions, Insufficient
(2) Every member who attends yoga sessions also attends strength training sessions. => member attends strength training sessions will always be equal to or greater than yoga attendees as all yoga attendees attends strength training sessions. So no, the number of members who attend yoga sessions is smaller than that of strength training sessions, Sufficient
(1) Every member who attends yoga sessions also attends at least one other type of session.
=> unknown relationship with member who attented strength training sessions. in other words, x people attends yoga session could attend not only strength training sessions but any other type of sessions, Insufficient
(2) Every member who attends yoga sessions also attends strength training sessions. => member attends strength training sessions will always be equal to or greater than yoga attendees as all yoga attendees attends strength training sessions. So no, the number of members who attend yoga sessions is smaller than that of strength training sessions, Sufficient
01 Jul 2025, 10:17
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yoga members (Y), strength training members (S)
(1) Every yoga member attends at least one other type of session: they can attend strength training or something else \(\to\) Y could be >, < or = S (IS)
(2) all yoga member is part of strength group \(\to\) Y\(\leq\)S \(\to\) Y is not greater than S (S)
Answer: B
(1) Every yoga member attends at least one other type of session: they can attend strength training or something else \(\to\) Y could be >, < or = S (IS)
(2) all yoga member is part of strength group \(\to\) Y\(\leq\)S \(\to\) Y is not greater than S (S)
Answer: B
01 Jul 2025, 10:21
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We are given, that there are 180 gym members. And we need to find if the Number of people in Yoga (Y) is greater than the Number of people in Strength Training (ST)
Or put mathematically, Y>ST
Statement 1:
Every member who attends yoga sessions also attends at least one other session.
This does not tell us anything about the # of people in ST, so insufficient.
Statement 2:
Every member who attends yoga sessions also attends strength training sessions.
There are two possible scenarios:
1. Y is a subset of ST, which means that all people who attend yoga also attend ST, but not all people who attend ST don't attend yoga. Notice, in this case we know that Y<ST
2. Y and ST are superimposed, which means all of the 180 people attend both Y and ST. Here we have Y=ST
In both scenarios, we can say that Y>ST is not possible; so this statement is sufficient.
The answer is choice B.
GMAT-Club-Forum-hbqymu2u.png [ 18.78 KiB | Viewed 195 times ]
Or put mathematically, Y>ST
Statement 1:
Every member who attends yoga sessions also attends at least one other session.
This does not tell us anything about the # of people in ST, so insufficient.
Statement 2:
Every member who attends yoga sessions also attends strength training sessions.
There are two possible scenarios:
1. Y is a subset of ST, which means that all people who attend yoga also attend ST, but not all people who attend ST don't attend yoga. Notice, in this case we know that Y<ST
2. Y and ST are superimposed, which means all of the 180 people attend both Y and ST. Here we have Y=ST
In both scenarios, we can say that Y>ST is not possible; so this statement is sufficient.
The answer is choice B.
Attachment:
GMAT-Club-Forum-hbqymu2u.png [ 18.78 KiB | Viewed 195 times ]
