20 people will preferf a different toothpase and 10 people will perfer same.
5 is same and 10 is different.
Total 15 People so that mean if we want to survey 30 people, we will want to 15 x 2. Then that mean result will be duoble.
Answer:
13
Step-by-step explanation:
just add them both and divide by 65
-8