Raymond B. answered 13d
Tutor
5
(2)
Math, microeconomics or criminal justice
5+2+1 = 4 +6+15+10
8 = 35?? something is wrong with the problem. a problem with the problem. it doesn't add up
6+15+10 = the number of people who hunted
maybe the key is "on average"
so number of people = 5+2+1 -4 = 4 people, on average
but 6+15+10 = 21 this time