A box contains 4 pears and 7 oranges.Three fruits are taken

来源：学生作业帮编辑：神马作文网作业帮分类：英语作业时间：2024/11/23 19:02:17

A box contains 4 pears and 7 oranges.Three fruits are taken out at random and eaten.The probability that 2 pears and 1 orange are eaten in any order is________

一个箱子装有4个梨子和7个橙子.三种水果要被随机拿出吃掉.2个梨子和1个橙子以任何顺序被吃掉的概率是________
14/55
再问：可以问下这个答案是怎么出来的么？
再答：英语翻译是绝对正确的，纯人脑翻译我是初中生，所以用笨方法首先考虑有3种顺序：①梨梨橙、②梨橙梨、③橙梨梨 ①第一次拿到梨子的概率是4/11 第二次拿到梨子的概率是3/10 第三次拿到橙子的概率是7/9 总概率4/11×3/10×7/9=14/165 ②第一次拿到梨子的概率是4/11 第二次拿到橙子的概率是7/10 第三次拿到梨子的概率是1/3（3/9）总概率4/11×7/10×1/3=14/165 ③……这个不用算，就是14/165 那么最后的概率就是14/165×3=14/55

A box contains 4 pears and 7 oranges.Three fruits are taken Apples,bananas,pears and oranges are fruit 还是fruits? apples,are,fruits,pears,and 连词成句 Apples and pears are fruits.这句话对吗? oranges and apples are fruit(还是用 fruits) Good idea .Where are the oranges and pears? Oranges are a kind of ______ . A. fruit B. fruits there are three oranges in the box.(three oranges是划线部分,请对划线部英语翻译l want one apple,two oranges,twobananas and three pears. Apples are 10 kilos;pears are 15 kilos and oranges are 20 ki 单词拼写.1.Apples,pears and oranges are f_____.2.He On the table are many things 什么apple,pears and oranges