Question

A survey of 516 adults aged 18-24 year olds was conducted in which they were asked...

A survey of 516 adults aged 18-24 year olds was conducted in which they were asked what they did last Friday night. It found:

  • 163 hung out with friends
  • 194 ate pizza
  • 28 watched TV and ate pizza, but did not hang out with friends
  • 38 watched TV and hung out with friends, but did not eat pizza
  • 32 hung out with friends and ate pizza, but did not watch TV
  • 45 watched TV, hung out with friends, and ate pizza
  • 68 did not do any of these three activities

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

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