# A survey of 514 adults aged 18-24 year olds was conducted in which they were asked what they did last Friday night.  It found:179 watched TV153 hung out with friends44 watched TV and ate pizza, but did not hang out with friends33 watched TV and hung out with friends, but did not eat pizza31 hung out with friends and ate pizza, but did not watch TV42 watched TV, hung out with friends, and ate pizza56 did not do any of these three activitiesHow may 18-24 year olds (of these three activities) only ate pizza last Friday night?

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A survey of 514 adults aged 18-24 year olds was conducted in which they were asked what they did last Friday night.  It found:

• 179 watched TV
• 153 hung out with friends
• 44 watched TV and ate pizza, but did not hang out with friends
• 33 watched TV and hung out with friends, but did not eat pizza
• 31 hung out with friends and ate pizza, but did not watch TV
• 42 watched TV, hung out with friends, and ate pizza
• 56 did not do any of these three activities

How may 18-24 year olds (of these three activities) only ate pizza last Friday night?

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Step 1

Calculation:

Obtain the venn diagram using the...

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