問題詳情：
在“十一”期間，小明等同學隨家長共15人到遊樂園遊玩，*門票每張50元，學生門票是6折優惠．他們購票共花了650元，求一共去了幾個家長、幾個學生？
【回答】
解：設一共去了x個家長，則去了(15－x)個學生，·········································· 1分
根據題意得50x＋50×0．6(15－x)＝650，·················································· 3分
解得x＝10，···························································································· 4分
15－10＝5，····························································································· 5分
答：一共去了10個家長、5個學生．······························································· 6分
知識點：實際問題與一元一次方程
題型：解答題
