A new client wants to promote his 3 Indian restaurants, in different areas of London, to people searching for places to eat. How might you organize his account?

  • Create 1 campaign with an ad group for all restaurant locations
  • Create several campaigns with 2 ad groups each: dine-in and takeout
  • Create 1 campaign with an ad group for each restaurant location
  • Create 1 campaign with an ad group for each menu item

The correct answer is:

  • Create 1 campaign with an ad group for each restaurant location

Explanation: If you want all your ads to share a budget and you want to target the same set of locations, then you can just use one campaign.
Read more here: https://support.google.com/adwords/answer/6372655