Time remaining:
Gym membership total

Algebra
Tutor: None Selected Time limit: 1 Day

At the gym, 371 people lift weights, 514 swim, 489 play tennis. Of the above, 177 lift weights and swim, 179 lift and play tennis, 184 swim and play tennis, 177 swim and lift. 100 people lift, swim and play tennis. 89 dont use the gym at all. How many people belong to the gym?

Mar 20th, 2015

Add the number of people who lift weghts, swim, and play tennis in the gym: 371 + 514 + 489 = 1374. 

However, the people who engage exactly in two activities were counted twice and the people who do all three of them were counted thrice. To obtain the correct answer we need to subtract the numbers 177, 179, 184 and then add the number 100: 1374 - (177 + 179 + 184) + 100 = 1374 - 540 + 100 = 934.

Answer: 934 people use the gym.

Mar 19th, 2015

Are you studying on the go? Check out our FREE app and post questions on the fly!
Download on the
App Store
...
Mar 20th, 2015
...
Mar 20th, 2015
Dec 5th, 2016
check_circle
Mark as Final Answer
check_circle
Unmark as Final Answer
check_circle
Final Answer

Secure Information

Content will be erased after question is completed.

check_circle
Final Answer