比较数量很容易,将每个数量定义为特定的标准,然后在它们之间进行比较。比较数量可以有效地完成,方法是将它们设为某个标准,然后将其与指定的标准进行比较。例如,如果我们相对于同一事物的100个部分来量化一个特定事物,则这称为百分比比较。否则,如果我们将两者相互比较,那么我们将计算这两个量的比率。
比率
简单来说,将Quantity1与Quantity2进行比较就是Ratio。在分子中提到第一数量(例如p),在分母中提到第二数量(例如q)。表示比率的方法是p / q 。
Ratio Formula: Quantity 1/Quantity 2
例子:
Quantity1 has 5 portions and Quantity2 has 8 portions. The ratio of both the quantities will be 5:8.
百分比
将数量与分母中相同数量的100份进行比较是百分比。在分子中提到第一数量(例如p),在分母中提到第二数量(例如q)。该数量乘以100。表示比率的方法是(p / q)* 100 。
Percentage Formula: (Quantity/Total Quantity) * 100
例子:
Quantity1 has 5 portions and Quantity2 has 8 portions.
Percentage of Quantity1: (5/13)*100
Percentage of Quantity2: (8/13)*100
Both are comparing techniques, and are used accordingly in different situations depending on the need.
百分比百分比:
80% expressed as fraction will be 80/100
30% expressed as fraction will be 30/100
比例百分比:
80% expressed as ratio will be 80/100 = 4 : 5
30% expressed as ratio will be 30/100 = 3 : 10
小数百分比:
80% expressed as decimal will be 80/100 = 0.8
30% expressed as decimal will be 30/100 = 0.3
计算数字百分比:
要计算百分比,只需将数字乘以百分比即可。
例子:
90% of 10 can be calculated as follows:
(90/100)*10 = 9
So, 90% of 10 is 9.
一些快速公式
- If a/b = c/d, then ad = bc
- If a/b = c/d, then b/a = d/c
- If a/b = c/d, then a/c = b/d
- If a/b = c/d, then (a – b)/b = (c – d)/d
- If a/b = c/d, then (a + b)/b = (c + d)/d
- If a/b = c/d, then (a + b)/(a – b) = (c + d)/(c – d), Compenendo- Dividendo Rule
- If (a/b)*100 then it’s a/b %
实践问题
问题1:数量是200的25%。找到数量了吗?
解决方案:
Quantity = (25/100) * 200 = 50
问题2:如果数量(x)的60%是300,那么找到数量x?
解决方案:
60x/100 = 300
=> x = 30000/60 = 500
The quantity x is 500.
问题3:板球队在一系列比赛的5场比赛中赢得3场比赛。请问中奖率和百分比?
解决方案:
Winning Ratio: 3/5
Winning Percentage: (3/5) * 100 = 60%
问题4:板球比赛系列的胜率是60%。在板球系列赛中找到5场比赛中赢得的总比赛数?
解决方案:
Matches Won = (60/100) * 5 = 3
问题5:一个苗圃有10000株植物。 10%的植物是橘子,3%的是芒果植物。其他植物总数是多少?
解决方案:
Total Plants = 10000
Orange plants = 10% of total
Mango Plants = 3% of total
Other plants = 100% – (10% + 3%) = 87% of total
= (87/100) * 10000
= 8700
The total number of other plants are 8700.
问题6:GeeksforGeeks有90名工程师员工。在这家公司中,工程师占其员工总数的50%。公司有多少人受雇?
解决方案:
50% of total workforce = 90 engineers
Let total workforce be x
Then, (50/100) * x = 90
x = (90 * 100) / 50
x = 180
So, the total workforce of GeeksforGeeks is 180 employees.