好像是susan上周从周一到周五去拜访家人,记下3/4的拜访故事,the visits she made on Tuesday 4 more than on Monday, and 3 times as many family visits during last three day as during the first two days(这句就难死我了). 她记下了30个故事,问她周二拜访了几个家。怎料答案只是4,5,6,7,8!!???我算出17啊!!顶! 上面是原JJ作者的描述。我也不很明白and 3 times as many family visits during last three day as during the first two days的意思? 难道是指TUESDAY=3(WEDNSDAY+TURTHSDAY+FRIDAY)=3(MONDAY+TUESDAY)? MONDAY+。。。+FRIDAY=40 MONDAY+4=TUESDAY 这样也算不出题目给的选项呀。 大家过来瞧瞧! |