120 是 90 的百分之几?
测量 是研究几何图形及其参数(如体积、面积、高度、周长等)的测量。该主题涉及不同二维和三维几何图形的长度、体积、面积、周长、总表面积形状。这些形状存在于平面上。二维形状仅具有长度和宽度的尺寸。然而,三维形状处理诸如长度、宽度、高度或深度等维度。
百分比是多少?
百分比是表示为 100 的分数的比率。它是一个没有度量单位的数字,通常用数学符号 (%) 表示。百分比值是通过将给定的数字比率乘以 100 来计算的。
Example: If we have to calculate what percent is 50 balls out of 1000 balls in the basket we will first have to compute a ratio and then multiply it by 100 to gain a percentage value.
Solution:
= 50/1000
= 0.05
0.05 is the ratio of the numeric value. Now, multiplying the ratio by 100
= 0.05 x 100
= 5%
120 是 90 的百分之几?
解决方案:
Let us consider a number to be x.
By the standard method of percentage calculation.
= x % of 90 = 120
= x/100 x 90 = 120
= 90x = 12000
= x = 12000/90
= x = 133.33%
Therefore, 133.33% is the percentage of 120 of 90.
示例问题
问题 1:80 的 35% 是多少?
解决方案:
By the question,
= 35% of 80
= 35/100 x 80
= 0.35 x 80
= 28
问题 2:80 的 25% 是多少?
解决方案:
By the question,
= 25% of 80
= 25/100 x 80
= 0.25 x 80
= 20
问题 3:120 中 90 的百分比是多少?
解决方案:
By the question,
= x% of 120 = 90
= x/100 x 120 = 90
= x = 90 x 100/120
= x = 75
问题 4:60 的 30% 是多少?
解决方案:
By the question,
= 30% of 60
= 30/100 x 60
= 0.30 x 60
= 18