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因为百分数是一种特殊形式的分数,所以百分数应用题的形式和解法同分数应用题类似。常见的百分数应用题有以下三类:1.求百分率。这类问题在工农业生产和日常生活中有着广泛的应用。这类问题实际上就是求一个数是另一个数的百分之几的问题。常见的求百分率的种类和计算公式有以下几种:达标率=(达标学生人数)/(学生总人数)×100%,发芽率=(发芽种子数)/(种子总数)×100%,出勤率=(出勤人数)/(应出勤总人数)×100%,合格率=(合格件数)/(产品总件数)×100%……
Because percentages are a special form of scores, the form and solution of percentages of applied questions are similar to the fractional application questions. Common percentage of application questions have the following three categories: 1. Seeking percentage. Such problems have a wide range of applications in industrial and agricultural production and daily life. This kind of question is actually a matter of asking what percentage is a few percent of another number. Common percentages of the types and formulas are as follows: Compliance rate = (number of students to meet the standard) / (total number of students) × 100%, germination rate = (germinated seeds) / (total number of seeds) × 100%, attendance Rate = (number of attendants) / (total number of attendants) × 100%, passing rate = (number of qualified) / (total number of products) × 100% ......