英语数学题和英语智力题

车过河交渡费3元，马过河交渡费2元，人过河交渡费1元.某天过河的车、马数目的比是2：9，马和人数目的比为3：7，共收得渡费945元，这天渡河的车、马、人的数目分别是多少？（用化连比的方法做） 车：马：人=2：9：21 解:设渡河的车有2x辆，马9x匹，人21x个。 2x×3+9x×2+21x×1=945 6x+18x+21x=945 66x=945 x=21 2x=42 9x=189 21x=441 答：渡河的车有42辆，马有189匹，人有441个。 翻译一下就可以啦

1.What letter is a drink? It is _____ (包括大小写) 2.What is the next number? A.3125 B.625 C.125 D.______ 3.What never asks questions but you always answer it?_________ 4.John , Martin , Lily and Annie are brothers and sisters .I don't know how old each of them is . I only know that one of them is 18,one is 15,one of the boys is 16 and one of the girls is 17 .I also know that John is older than Lily ,but Annie isn't.How old are Annie,John,Martin and Lily? _______________________________________ 1．T（tea） 2．25（前一个是后一个5倍） 3．phoon（answer the phoon接电话） 4．John18 , Martin16 , Lily17， Annie 15

解:设渡河的车有2x辆，马9x匹，人21x个。 2x×3+9x×2+21x×1=945 6x+18x+21x=945 66x=945 x=21 2x=42 9x=189 21x=441 答：渡河的车有42辆，马有189匹，人有441个。