In a group of 50 people, 25 have visited Iceland and 23 have visited Norway.
In a group of 50 people, 25 have visited Iceland and 23 have visited Norway. If 21 people have visited both Iceland and Norway, how many people have visited neither country?
Answer/Solution
23
Steps/Work
This is an example of a standard Overlapping Sets question. It has no 'twists' to it, so you'll likely find using the Overlapping Sets Formula to be a fairly easy approach. If you're not familiar with it, then here is the Formula:
50= 25 + 23 - 21 + (# in Neither Group)
=23
The prompt gives you all of the numbers you need to get to the correct answer. Just plug in and solve.
D
50= 25 + 23 - 21 + (# in Neither Group)
=23
The prompt gives you all of the numbers you need to get to the correct answer. Just plug in and solve.
D