某商场用32000元购进一批运动服，上市后很快脱销，商场又用68000元购进第二批这种运动服，所购数量是第一批购进数量的2倍，但每套进价多了10元。①该商场两次共购进这种运动服-八年级数学

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• 在“情系玉树”捐款活动中，某同学对八年级的（1）、（2）两班的捐款情况进行统计得到如下三条信息：信息一：（1）班共捐款300元，（2）班共捐款232元；信息二：（2）班平均每人捐款钱数是（-八年级数学
• 一班级组织一批学生去春游，预计共需费用120元，后来又有2人参加进来，总费用不变，于是每人可以少分摊3元，原来参加春游的学生人数是（）。-八年级数学
• 甲志愿者计划用若干个工作日完成社区的某项工作，从第三个工作日起，乙志愿者加盟此项工作，且甲、乙两人工效相同，结果提前3天完成任务，则甲志愿者计划完成此项工作的天数-八年级数学
• 某商店用8万元购进一种衬衫，因为销量好，第二次又用17.6万再次购进，数量为第一次的2倍，单价却贵了4元，卖时，两次定价都为58元一件，最后剩下50件时八折售完，问两笔生意-八年级数学
• 某书店用2400元购进一批图书，并以每套58元的价格全部售完。由于此书畅销，该书店又用了5280元再次以比第一次进价每套多4元的价格购进此种图书，数量是第一次进书数量的2倍，-八年级数学
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