There are 19 red balls, 20 yellow balls, 15 green balls and 24 blue balls in a bag. How many balls
问题描述：
There are 19 red balls, 20 yellow balls, 15 green balls and 24 blue balls in a bag. How many balls
must be taken out at least to make sure each color is picked?翻译和解题
答
袋子里有19个红球,20个黄球,15个绿球和24个蓝球.至少取出多少球才能保证每个颜色都取到?
19+20+24+1=64