题目

SAT MATH QUESTION
1） The sum of eleven different integers is zero.What is the least number of these integers that must be positive?
2) In a certain game,each token has one of three possible values:1 point,5points or 10points.How many different combinations of these token values are worth a total of 17 points?

提问时间：2020-10-31

答案

1) 1
example:-10,-9,-8,-7,-6,-5,-4,-3,-2,-1,55
2) 6
all 1's,three 5's+two 1's,two 5's+seven 1's,one 5+twelve 1's,one 5+one 10+two 1's,one 10+seven 1's