4 people like ketchup, 1 person likes tomato. How many people like ketchup or tomato?
Or means we add. We want to add people that like both ketchup and tomatoes.
4 ketchup + 1 tomato = 5 total people
Or means we add. We want to add people that like both ketchup and tomatoes.
4 ketchup + 1 tomato = 5 total people