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My guess is B.

(1) Every member who attends yoga sessions also attends at least one other type of session.
(2) Every member who attends yoga sessions also attends strength training sessions.

In Statement 1, it is uncertain how many other sessions there are.
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Bunuel
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.
(2) Every member who attends yoga sessions also attends strength training sessions.


 


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(1) Insufficient.
For example, it could be that 179 members do both yoga and dancing, while only 1 member does strength training. It could also be the other way around, 1 yoga and dancing compared to 179 strength training members.

(2) Insufficient, but tricky. Question is asking if Yoga > Strength training members, while this answer gives us that Yoga \(\le\) Strength training. If we consider a Venn diagram, the Yoga circle will be contained inside the Strength training circle, but it could be equal. It would be sufficient if we had any information to deny the possibility of them being equal, as we would be able to give NO as an answer.

(1 AND 2) Insufficient, since there's a situation where the 2 conditions could overlap, where the number of Yoga and Strength Training members could be the same, where anyone doing either of the sessions also attend the other session.
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Yoga > Strength?

"(1) Every member who attends yoga sessions also attends at least one other type of session."

-> No information on Strength = Not Sufficient : Eliminate answer choice A and D.

"(2) Every member who attends yoga sessions also attends strength training sessions."

-> Yoga > Strength could be true, but Yoga = Strength could be true as well.
Not Sufficient : Eliminate answer choice B.

(1) & (2) together : "at least one other type of session." and "also attends strength training sessions."
-> They can attend only one other type of session, and this session could be strength. Same conclusion as for (2) only: Not sufficient : Eliminate answer choice C.

Answer choice E.
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S1 offers no info about those that attend strength training hence insufficient
S2 means either S=Y or S>Y and in both cases the answer to the question whether Y>S? is always NO
Hence S2 is sufficient
Ans B
Bunuel
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.
(2) Every member who attends yoga sessions also attends strength training sessions.


 


This question was provided by GMAT Club
for the GMAT Club Olympics Competition

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Imagine a 2-set Venn Diagram

Let,
the gym members who attend only Yoga sessions = P
the gym members who attend only ST sessions = Q
the gym members who attend both sessions = R

Total Yoga members (Y) = P+R
Total ST members (ST)= Q+R

Asked: Whether Y>ST?

St.1 - It's not specified what is that other type of session? Is is ST or Pilates session? And how are these sessions connected? Not sufficient!

St.2 - Two possible cases:

i. there are no gym members who attend only ST sessions => Q = 0. In this case, Y=ST

ii. there are 50 gym members who attend only ST sessions => Q = P + 50 => Y<ST

In both cases, P is not greater than Q. Statement II is sufficient.

Ans B

Bunuel
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.
(2) Every member who attends yoga sessions also attends strength training sessions.


 


This question was provided by GMAT Club
for the GMAT Club Olympics Competition

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i need to check if yoga people > strength training people.

statement 1: every yoga person does atleast one other activity too
this doesnt tell me anything about how many do strength training specifically. not enough info.

statement 2: every yoga person also does strength training
this means all yoga people are included in the strength training group. so yoga ≤ strength training.
so NO, yoga is not greater than strength training.

statement 1: not enough
statement 2: gives me a clear NO

answer is B - statement 2 alone is sufficent.
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(1) only: Every member who attends yoga sessions also attends at least one other type of session.
This basically can't not give any conclusion


(2) only: Every member who attends yoga sessions also attends strength training sessions.
This means that yoga <= strength. Hence we can answer the question.

Answer: B
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Yoga attendants cannot be greater than Strength attendants
Statement 2 is correct answer
Here let’s assume
No. of yoga attendants = Y
No. of strength attendants = S
We need to prove Y>S
Take statement 1
Every member who attends yoga sessions also attends at least one other type of session.
Firstly we don’t know how many type of sessions are going on, so without knowing how many attendants are attending other sessions with strength training we cannot answer.
Take statement 2
Every member who attends yoga sessions also attends strength training sessions.
If this is the case then Y<=S, (Because there are chances that Strength can have more attendants)
But we need to prove Y>S, so this statement is correct to answer.
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(1) Every member who attends yoga sessions also attends at least one other type of session.

This tells us that no one attends only yoga, but it also doesn't give any numerical relationship between yoga and strength training attendance directly
So statement 1 is insufficient

(2) Every member who attends yoga sessions also attends strength training sessions.

This statement says that the yoga group is a subset of the strength training group. Therefore, the number of yoga attendees cannot be greater than the number of strength training attendees, so has to be equal or lesser than the strength attendees.
Statement 2 is seen to be sufficient

B. Statement 2 alone is sufficient, but 1 alone isnt
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Answer E

Statement 1 - insufficient. It only talks about yoga and some other session (not necessarily strength training)

Statement 2 - insufficient. It says member who attends yoga also attends strength training. But that does not mean members attending yoga is more. They can be equal

Both together also dont prove there cant be equal members in yoga and strength training.

So both together are also insufficient i.e E
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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.
(2) Every member who attends yoga sessions also attends strength training sessions.

i think that this is a logic question. Call those attend yoga sessions Y, and those who attend strength training sessions S

1) From statement 1, I don't see a clear relationship between Y and S. We just know that Y overlaps with some other sets of attendees. Not sufficient

2) This means all of Y belongs to S. Therefore, Y must be less than or equal to S. We can answer definitely that Y is not greater than S. sufficient

Choose B
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Statement (1) is insufficient as it only states yoga attendees attend at least one other session, which could or could not be strength training. Statement (2) is sufficient because it directly states every yoga attendee also attends strength training. This implies that the set of yoga attendees is a subset of strength training attendees, meaning the number of yoga attendees cannot be greater than the number of strength training attendees. Thus, Statement (2) provides a definitive "no" to the question and thus is sufficient. Answer B.

Regards,
Lucas

Bunuel
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.
(2) Every member who attends yoga sessions also attends strength training sessions.


 


This question was provided by GMAT Club
for the GMAT Club Olympics Competition

Win over $30,000 in prizes such as Courses, Tests, Private Tutoring, and more

 

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both the statements indicate that venn diagram for yoga class members is inside the st training circle
Bunuel
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.
(2) Every member who attends yoga sessions also attends strength training sessions.


 


This question was provided by GMAT Club
for the GMAT Club Olympics Competition

Win over $30,000 in prizes such as Courses, Tests, Private Tutoring, and more

 

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We need to identify if the number of people attending yoga> strength training. ie. Y>S?

Statement 1: Every member who attends yoga sessions also attends at least one other type of session.

Not Sufficient. Doesnt say how many attend any sessions or what are the type sessions there are. Hence amount of information is insufficient

Statement 2: Every member who attends yoga sessions also attends strength training sessions.

Lets say number of members attending yoga is 50, then atleast 50 will attend Strength training. This means that yoga members are a subset of strength members, hence S>Y

So, for the question, is Y>S. it is NO

Statement 2 is Sufficient
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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.
(2) Every member who attends yoga sessions also attends strength training sessions.



Total = 180. Is Y>S

St1: Insufficient. This statement does not help in anyway to get an answer.

St2: Insufficient.

Case 1, Y = S = 180

Case 2, Y=90, S = 180, so Y<S.

Combining: Insufficient. Does not help.

Answer: (E)
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IMO, statement B alone is sufficient. If " Every member who attends yoga sessions also attends strength training sessions." , then, members who attend yoga can never be greater than strength training members. It can be either less than or equal to the ST members.
Bunuel
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.
(2) Every member who attends yoga sessions also attends strength training sessions.


 


This question was provided by GMAT Club
for the GMAT Club Olympics Competition

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Bunuel
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.
(2) Every member who attends yoga sessions also attends strength training sessions.


 


This question was provided by GMAT Club
for the GMAT Club Olympics Competition

Win over $30,000 in prizes such as Courses, Tests, Private Tutoring, and more

 

1 is not sufficient as there can be other sessions as well
Eliminate A,D

2 is sufficient as if this is the case then n(yoga) <= n(strength)

Final answer B
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