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78 V1 一个人的6个朋友,一年中看电影的次数分别为:9,11,17,12,14,10,他的妹妹LUCY看电影的次数比他的哥哥SAM的次数少7次,在这些人中,RANGE为10,问SAM一共看了几次电影?
V2 sam's 6 friends watched this many movies: 9,11,17,12,14,10 so there are total of 8 people sam's sister watched 7 less than sam range is 10 what is the possible number of movies watched by sam's sister ( i think her name is lucy) I choose A, I think is 7. 17-10 = 7
随便就可以举两种情况:一:sum :19次,他妹妹12次满足啊
17和7也满足啊~~
所以不懂.... |
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