100 people in a sports centre are surveyed. 36 regularly use the fitness suite and the swimming pool. 57 use the fitness suite. 49 use the swimming pool. Complete the Venn diagram

The required Venn diagram in the attachment

Step-by-step explanation:

Here the total people in the sports center is 100.

57 people regularly use fitness suite.

49 people regularly use swimming pool.

36 people regularly use both fitness suite & swimming pool.

Now , out of 57 people in the fitness suite there are 36 people who are doing both fitness suite & swimming pool.

Therefore, people who are doing only fitness suite is = (57-36 ) = 21.

Again , out of 49 people in the swimming pool there are 36 people who are doing both fitness suite & swimming pool.

Therefore, people who are doing only swimming pool is = (49-36 ) = 13.

Therefore, total number of people doing fitness suite & swimming pool = 21+13+36 = 70.

Therefore, there are (100-70)=30 people who doing nothing.

please see , The required Venn diagram in the attachment _