Introduction :
Multiply percentages are apply to communicate how large/small individual number is, comparative to a further number. The initial number typically corresponds to a division of, otherwise vary in, the following number, that must be greater than zero. For exemplar, enlarges of dollar 0.05 and dollar 2.5 is an increase in a fraction of 0.05 / 2.5 = 0.02. Expressed while a percentage, this is consequently a 2% increase.
How to Multiply percentage:
Even though percentages are frequently used to know how to communicate numbers among zero also one, some dimensionless proportionality know how to be expressed while a percentage.
Uses of Percentage:
Commission
Discount
Markup
Sales tax
Price with sales tax
Shipping and handling
Simple interest
Simple interest and principal
Consequences of one numeral are separated in a further multiply percentage. Ratios are the simplest mathematical tools to expose significant relationships indefinite in group of data by permit important comparisons. An only some expressed like fractions with some like percentage.
Examples for multiply percentage:
Example 1:
In an election between two canditates 80% of the voters cast their votes, out of which 2% of the votes were declared invalid. A canditate get 972 votes which weer 60% of the total valid votes. how to solve the total number of votes enrolled in the election
Solution:
Step 1: let the total numebr of votes enrolled be x then number of votes cast = 80% of x
Step 2: valid votes = 98% of (60% of x)
Step 3: 80% of [98% of (60% of x)] = 972
Step 4: `(80)/(100) * (98)/(100) * (60)/(100) * x = 972`
Step 5: `x = (972 * 100 * 100 * 100)/(80 * 98 * 60)`
Step 6: the answer of the percentage is x = 12397.
Example 2:
20% of the inhabitants of a village having died of cholera a panic get in during which 50% of the remaining inhabitants left the village. the population is then reduced to 5021. how to find the number of original inhabitants.
Solution:
Step 1: let the total number of original inhabitants be x, then (100 - 50)% of (100-20)% of x = 5021.
Step 2: 50% of 80% of x = 5021
Step 3: `(50)/(100) * (80)/(100) * x = 5021 `
Step 4: `x = (5021 * 100 * 100)/(50 * 80)`
Step 5: x = 12553.
Example 3:
how to Find the 5% of 10
Solution:
Step 1: given that 5% from 10.
Step 2: change the 5 % into percentage form
Step 3: 5% out of 100 so, 5/100
Step 4: `(5)/(100) * 10`
Step 5: So the solution 0.5
Example 4:
how to Find the 15% of 50
Solution:
Step 1: given that 15% from 50.
Step 2: change the 15 % into percentage form
Step 3: 15% out of 100 so, 15/100
Step 4: `(15)/(100) * 50`
Step 5: So the solution 7.5
Multiply percentages are apply to communicate how large/small individual number is, comparative to a further number. The initial number typically corresponds to a division of, otherwise vary in, the following number, that must be greater than zero. For exemplar, enlarges of dollar 0.05 and dollar 2.5 is an increase in a fraction of 0.05 / 2.5 = 0.02. Expressed while a percentage, this is consequently a 2% increase.
How to Multiply percentage:
Even though percentages are frequently used to know how to communicate numbers among zero also one, some dimensionless proportionality know how to be expressed while a percentage.
Uses of Percentage:
Commission
Discount
Markup
Sales tax
Price with sales tax
Shipping and handling
Simple interest
Simple interest and principal
Consequences of one numeral are separated in a further multiply percentage. Ratios are the simplest mathematical tools to expose significant relationships indefinite in group of data by permit important comparisons. An only some expressed like fractions with some like percentage.
Examples for multiply percentage:
Example 1:
In an election between two canditates 80% of the voters cast their votes, out of which 2% of the votes were declared invalid. A canditate get 972 votes which weer 60% of the total valid votes. how to solve the total number of votes enrolled in the election
Solution:
Step 1: let the total numebr of votes enrolled be x then number of votes cast = 80% of x
Step 2: valid votes = 98% of (60% of x)
Step 3: 80% of [98% of (60% of x)] = 972
Step 4: `(80)/(100) * (98)/(100) * (60)/(100) * x = 972`
Step 5: `x = (972 * 100 * 100 * 100)/(80 * 98 * 60)`
Step 6: the answer of the percentage is x = 12397.
Example 2:
20% of the inhabitants of a village having died of cholera a panic get in during which 50% of the remaining inhabitants left the village. the population is then reduced to 5021. how to find the number of original inhabitants.
Solution:
Step 1: let the total number of original inhabitants be x, then (100 - 50)% of (100-20)% of x = 5021.
Step 2: 50% of 80% of x = 5021
Step 3: `(50)/(100) * (80)/(100) * x = 5021 `
Step 4: `x = (5021 * 100 * 100)/(50 * 80)`
Step 5: x = 12553.
Example 3:
how to Find the 5% of 10
Solution:
Step 1: given that 5% from 10.
Step 2: change the 5 % into percentage form
Step 3: 5% out of 100 so, 5/100
Step 4: `(5)/(100) * 10`
Step 5: So the solution 0.5
Example 4:
how to Find the 15% of 50
Solution:
Step 1: given that 15% from 50.
Step 2: change the 15 % into percentage form
Step 3: 15% out of 100 so, 15/100
Step 4: `(15)/(100) * 50`
Step 5: So the solution 7.5
No comments:
Post a Comment