KensingtonT317196 KensingtonT317196

Today at 6:47 PM
Mathematics

Answered

In a survey, 800 people belonging to a health center wereasked about their exercising habits. 290 said "yes" when askedif they used a treadmill regularly, 180 answered in affirmativewhen asked if they lifted weights regularly. 50 said "yes" toboth the exercises. How many said "yes" to either using atreadmill regularly or lifting weights regularly?

Answer :

MortimerR406479 MortimerR406479

Today at 6:53 PM

We can use a Venn diagram to represent the groups, as follow:

Based on the previous diagram, you can conclude that 290+50+180=520 said yes to either using a treadmill or lifting weights regularly.

${teks-lihat-gambar} MortimerR406479

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