how much kilos of meat does the elephant eat everyday?我觉得meat是不可数名词,所以用how much
不过你题目没错的话,就是how many kilos of meats does the elephant eat everyday了kilos划线What amount of meat（s） does the elepant eat everyday?我觉得只对kilos 提问，有点怪，上面那个是对5 kilos的划线的提问。单纯问kilos，我不知道,从来没有碰到过。你可以问你的老师，或者其他人。