Of the 1200 members of a gym, 150 have student memberships and attend

Question

Of the 1200 members of a gym, 150 have student memberships and attend fitness classes 2 or more times a week. How many of the 1200 members have students memberships and attend fitness classes fewer than 2 times a week?

(1) 800 members have non-student memberships
(2) 650 members attend fitness classes fewer than 2 times a week

Kinshook · Answer

Given: Of the 1200 members of a gym, 150 have student memberships and attend fitness classes 2 or more times a week. 
Asked: How many of the 1200 members have students memberships and attend fitness classes fewer than 2 times a week?

Student membership  Non-student membership  Total  
  Attend fitness classes 2 or more times a week.  150      
  Attend fitness classes fewer than 2 times a week   ?       
  Total      1200

(1) 800 members have non-student memberships
 
    Student membership  Non-student membership  Total  
  Attend fitness classes 2 or more times a week.  150      
  Attend fitness classes fewer than 2 times a week   250       
  Total  400  800  1200  
 
Number of members have students memberships and attend fitness classes fewer than 2 times a week = 250
SUFFICIENT

(2) 650 members attend fitness classes fewer than 2 times a week
 
    Student membership  Non-student membership  Total  
  Attend fitness classes 2 or more times a week.  150  400  550  
  Attend fitness classes fewer than 2 times a week   x=?   650-x  650  
  Total  150+x  1050-x  1200  
 
NOT SUFFICIENT

IMO A

Of the 1200 members of a gym, 150 have student memberships and attend

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	Student membership	Non-student membership	Total
Attend fitness classes 2 or more times a week.	150
Attend fitness classes fewer than 2 times a week	?
Total			1200

GMAT Data Sufficiency (DS) Questions

Of the 1200 members of a gym, 150 have student memberships and attend

Prep Toolkit

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745 with Only Self-Prep and GMAT Club

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My Rewards