Question

In a town ratio of men , women & children 9:8:3 80% men literate & 30% women are illiterate . If 90% children are literate . Then the percentage of illiteracy of that town is?​

Answer 1

Answer:

22.5%

Step-by-step explanation:

A percentage is a figure or ratio stated as a fraction of 100 in mathematics. If we need to calculate a percentage of a number, we should divide it by its entirety and then multiply it by 100. The proportion therefore refers to a component per hundred. Per cent refers to one hundred percent.

There is no dimension to percentages. As a result, it is known as a dimensionless number. When we say a number is 50% of anything, we mean that it is 50% of everything.

As in 0.6%, 0.25%, etc., percentages can also be expressed as decimals or fractions. Ram, for instance, scored 78% on his final exam. This percentage is calculated based on Ram's overall grade point average (GPA) across all subjects.

Let the number of men = 9k , women = 8k & children = 3k , then the total population of the town = $9k + 8k + 3k = 20k$

Now the number of illiterate men = $9k* 20%\\=180k/100$

Number of illiterate women = $8k* 30% \\= 240k/100$

Number of illiterate children = $3k*10% \\= 30k/100$

So the number of illiterate persons = $180k/100 + 240k/100 + 30k/100$

$= (180k+240k+30k)/100 = 450k/100$

Therefore the percentage of illiteracy = $450k/100 * 1/20k * 100% \\=22.5%$

For more details on Essay Writing, https://brainly.in/question/28301617

#SPJ1