At a certain gym 45% of people go to Zumba classes, 52% lift weights, and 44% go to yoga classes. 15% of people attend Zumba and yoga, 21% of people attend Zumba and lift weights, and 36% of people lift weights and attend another class. 5% of people do all three activities. What percentage of people attend only Zumba?

Question

Carl

Mathematics

22 July, 04:59

At a certain gym 45% of people go to Zumba classes, 52% lift weights, and 44% go to yoga classes. 15% of people attend Zumba and yoga, 21% of people attend Zumba and lift weights, and 36% of people lift weights and attend another class. 5% of people do all three activities. What percentage of people attend only Zumba?

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Answers (2)

Know the Answer?

Kadin Gallagher · Answer 1

Kadin Gallagher 22 July, 05:04

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Step-by-step explanation:

You

Adeline · Answer 2

The answer is %14.

Step-by-step explanation:

Lets consider that there are 100 people attending to the gym class.

Then we know that 45 person is going to Zumba training.

%5 of people attends all the classes in the gym. Means 5 person attends all the classes. Lets subtract them from 45 person. 45-5=40. We have 40 person left.

%15 of people attends Zumba and yoga, %21 of people attends Zumba and weight lifting. First we need to substract first %5 which attends all classes in the gym from both clusters.

21-5=16 and 15-5-10

We have 10+16=26 person which attends Zumba and one more class. Lets subtract those from Zumba cluster 40-26=14. 14 person is only attending to Zumba classes