单价公式
通常,比率指定了比较不同单位的两个不同数量的比率。示例:- 每小时公里数 (kmph)、每小时英里数 (mph) 等。 per 一词表示我们正在处理费率概念。术语 per 可以象征性地表示为“/”。当前主题单位费率也属于上述费率主题。
单价公式
它可以定义为第二个量或项等于 1 的两个不同测量值之间的比率,即,将一定数量的第一个量单位与一个单位的第二个量进行比较。单位费率公式的分母为 1。假设单位费率的示例是一小时有 60 分钟。因此,单位费率可以表示为每 (1) 小时 60 分钟。两个量/测量值 A、B 的单位率公式由下式给出,
Unit Rate = Ratio between two different measurements of different units
= A:B
= A/B
让我们研究一下有关 Unit Rate 的一些问题,以便更好地理解。
示例问题
问题 1:如果店主以 45 卢比的价格给学生 10 支铅笔,那么单位成本是多少?
解决方案:
Given,
Cost of pencils student bought (A) = 45
Count of pencils (B) = 10
Unit Cost of pencil = Cost of all pencils/Count of pencils
= 45/10
= 4.5/1
So per unit cost of pencil is 4.5 rupee.
问题 2:骑自行车的人在 4 小时内行驶了 200 公里。应用单位费率公式计算他在一小时内行驶了多少距离。
解决方案:
Given,
Distance travelled by rider (A) = 200Km
Taken taken to travel (B) = 4 hours
Unit rate Formula = Distance travelled by rider/Taken taken to travel
= 200/4
= 50/1
So per unit hour the rider travel 50 km. i.e., 50kmph
问题3:在一个书摊,卖家提供了十几本普通笔记本,价格为360卢比。找出每个单位的成本?
解决方案:
Given,
Cost of total books = 360 rupees
Number of books = 12
Unit rate Formula = Cost of total books/Number of books
= 360/12
= 30/1
Hence unit cost of a book is 30 rs.
问题 4:报童每天凌晨 3 小时送出 183 份报纸。报童在一小时内会分发多少份报纸?
解决方案:
Number of news papers distributed by a paperboy = 183
Time taken to distribute papers = 3 hours
Unit Rate formula to determine how may news paper a paper distribute in an hour is
= Number of news papers distributed/Time taken
= 183/3
= 61/1
So per unit hour a paperboy can distribute 61 newspapers.
问题 5:一名汽车司机在高速公路上以每小时 65 公里的速度行驶。司机一天要走多远?
解决方案:
Given,
Distance travelled by a driver in an hour = 65km
A day has 24 hours, so Distance travelled by a driver in 1 day = 65 × 24
= 1560km
Unit rate representation of distance travelled per day = 1560/1
问题 6:假设 5 层楼的公寓有 50 套公寓。一层楼会有多少个公寓? (提示-使用单位费率公式)
解决方案:
Given,
Number of flats = 50
Number of floors = 5
Number of flat in each floor = Number of flats/Number of floors
= 50/5
= 10/1
Number of flat per unit floor = 10