【每日一题Day3】袋鼠数学竞赛真题练习 |
时间:2024-07-04 11:42:11 作者:网络 来源:网络 |

Vivien and Mike were given some apples and pears by their grandmother. They had 25 pieces of fruit in their basket altogether, On the way home Vivien ate 1 apple and 3 pears.and Mike ate 3 apples and 2 pears. At home they found out that they brought home the same number of pears as apples. How many pears were they given by their grandmother?
Vivien 和 Mike 的祖母给了他们一些苹果和梨。他们的篮子里一共有25个水果。在回家的路上薇薇安吃了 1个苹果和3个梨。迈克才吃了3个苹果和 2个梨。在家里,他们发现他们带回家的梨和苹果一样多,他们的祖母给了他们多少梨?
(A)12 (B)13 (C)16 (D)20 (E)21
答案:B
解析:他们在路上总共吃了1+3+3+2=9个水果,此时篮子里还剩下25-9=16个水果,题目又告诉我们篮子里面苹果和梨的数量一样多,而8+8=16,所以我们知道现在篮子里有8个梨和8个苹果。路上他们又吃掉了1+3=4个苹果和3+2=5个梨。那么原有的梨的数量应该是剩下的梨加上吃掉的梨,即8+5=13个
Vivien and Mike were given some apples and pears by their grandmother. They had 30 pieces of fruit in their basket altogether, On the way home Vivien ate 4 apple and 1 pears.and Mike ate 2 apples and 3 pears. At home they found out that they brought home the same number of pears as apples. How many pears were they given by their grandmother?
Vivien 和 Mike 的祖母给了他们一些苹果和梨。他们的篮子里一共有30个水果。在回家的路上薇薇安吃了 4个苹果和1个梨。迈克才吃了2个苹果和 3个梨。在家里,他们发现他们带回家的梨和苹果一样多,他们的祖母给了他们多少苹果和梨?
(A)18,12 (B)17,13 (C)16,14
(D)10,20 (E)9,21
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