亚洲男人天堂av,国产一区二区久久精品,国产精品一区二区久久精品,国产精品久久久久久一区二区三区,五月婷婷在线观看视频,亚洲狠狠色丁香婷婷综合

歡迎您訪問數學考題練習:已知有10包相同數量的餅干,若將其中1包餅干平!

數學考題練習:已知有10包相同數量的餅干,若將其中1包餅干平

更新時間:2024-01-12 14:00:31作者:貝語網校

已知有10包相同數量的餅干,若將其中1包餅干平分給23名學生,最少剩3片.若將此10包餅干平分給23名學生,則最少剩多少片

A.0

B.1

C.7

D.10

試題答案

C

試題解析

(1)關鍵描述語:若將其中1包餅干平分給23名學生,最少剩3片,則這包餅干有y=23x+3(x是大于0的整數).

(2)關鍵描述語:將此10包餅干平分給23名學生,若每一包餅干還分相同的片數,則可知10包餅干最少剩30片,再平分給23名學生,可求得最少剩的片數.

解答:設這包餅干有y片,

則y=23x+3(x是大于0的整數),而10y=230x+30,考慮余數,故最少剩7片.

∴最少剩7片.

故選C.

點評:本題的關鍵是讀懂題意,把實際問題轉化為數學問題.

主站蜘蛛池模板: | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |