Class 9 Exam > Class 9 Questions > In a city 40% of adults are illiterate while ...
Start Learning for Free
In a city 40% of adults are illiterate while 85% of the children are literate. If the ratio of the adults to that of the children is 2 : 3, what percent of the population is litereted.
- a)25%
- b)75%
- c)50%
- d)80%
Correct answer is option 'B'. Can you explain this answer?
| FREE This question is part of | Download PDF Attempt this Test |
Most Upvoted Answer
In a city 40% of adults are illiterate while 85% of the children are l...
Let the no. of adults = 2x
No. of children = 3x Literate population
= (100 – 40)% of 2x + 85% of 3x
= 60% of 2x + 85% of 3x
Literate percent =
No. of children = 3x Literate population
= (100 – 40)% of 2x + 85% of 3x
= 60% of 2x + 85% of 3x
Literate percent =
Free Test
FREE
| Start Free Test |
Community Answer
In a city 40% of adults are illiterate while 85% of the children are l...
Given:
- 40% of adults are illiterate.
- 85% of children are literate.
- The ratio of adults to children is 2:3.
To Find:
- The percentage of the population that is literate.
Solution:
Step 1: Find the percentage of adults who are literate.
- Since 40% of adults are illiterate, the percentage of adults who are literate is 100% - 40% = 60%.
Step 2: Find the percentage of children who are illiterate.
- Since 85% of children are literate, the percentage of children who are illiterate is 100% - 85% = 15%.
Step 3: Find the ratio of literate adults to literate children.
- The ratio of adults to children is 2:3, which means for every 2 adults, there are 3 children.
- Let's assume we have 100 adults. According to the ratio, we will have 150 children.
- Since 60% of adults are literate, we have 60% of 100 = 60 literate adults.
- Since 15% of children are illiterate, we have 15% of 150 = 22.5 illiterate children.
- Therefore, the number of literate children is 150 - 22.5 = 127.5.
Step 4: Find the total number of literate people in the population.
- The total number of literate people is the sum of literate adults and literate children.
- Total number of literate people = literate adults + literate children = 60 + 127.5 = 187.5.
Step 5: Calculate the percentage of the population that is literate.
- The population consists of both adults and children.
- Total population = number of adults + number of children = 100 + 150 = 250.
- Percentage of the population that is literate = (total number of literate people / total population) x 100% = (187.5 / 250) x 100% = 75%.
Therefore, the percentage of the population that is literate is 75%.
- 40% of adults are illiterate.
- 85% of children are literate.
- The ratio of adults to children is 2:3.
To Find:
- The percentage of the population that is literate.
Solution:
Step 1: Find the percentage of adults who are literate.
- Since 40% of adults are illiterate, the percentage of adults who are literate is 100% - 40% = 60%.
Step 2: Find the percentage of children who are illiterate.
- Since 85% of children are literate, the percentage of children who are illiterate is 100% - 85% = 15%.
Step 3: Find the ratio of literate adults to literate children.
- The ratio of adults to children is 2:3, which means for every 2 adults, there are 3 children.
- Let's assume we have 100 adults. According to the ratio, we will have 150 children.
- Since 60% of adults are literate, we have 60% of 100 = 60 literate adults.
- Since 15% of children are illiterate, we have 15% of 150 = 22.5 illiterate children.
- Therefore, the number of literate children is 150 - 22.5 = 127.5.
Step 4: Find the total number of literate people in the population.
- The total number of literate people is the sum of literate adults and literate children.
- Total number of literate people = literate adults + literate children = 60 + 127.5 = 187.5.
Step 5: Calculate the percentage of the population that is literate.
- The population consists of both adults and children.
- Total population = number of adults + number of children = 100 + 150 = 250.
- Percentage of the population that is literate = (total number of literate people / total population) x 100% = (187.5 / 250) x 100% = 75%.
Therefore, the percentage of the population that is literate is 75%.
Attention Class 9 Students!
To make sure you are not studying endlessly, EduRev has designed Class 9 study material, with Structured Courses, Videos, & Test Series. Plus get personalized analysis, doubt solving and improvement plans to achieve a great score in Class 9.
|
Explore Courses for Class 9 exam
|
|
Similar Class 9 Doubts
Top Courses for Class 9View all
In a city 40% of adults are illiterate while 85% of the children are literate. If the ratio of the adults to that of the children is 2 : 3, what percent of the population is litereted.a)25%b)75%c)50%d)80%Correct answer is option 'B'. Can you explain this answer?
Question Description
In a city 40% of adults are illiterate while 85% of the children are literate. If the ratio of the adults to that of the children is 2 : 3, what percent of the population is litereted.a)25%b)75%c)50%d)80%Correct answer is option 'B'. Can you explain this answer? for Class 9 2024 is part of Class 9 preparation. The Question and answers have been prepared according to the Class 9 exam syllabus. Information about In a city 40% of adults are illiterate while 85% of the children are literate. If the ratio of the adults to that of the children is 2 : 3, what percent of the population is litereted.a)25%b)75%c)50%d)80%Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for Class 9 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for In a city 40% of adults are illiterate while 85% of the children are literate. If the ratio of the adults to that of the children is 2 : 3, what percent of the population is litereted.a)25%b)75%c)50%d)80%Correct answer is option 'B'. Can you explain this answer?.
In a city 40% of adults are illiterate while 85% of the children are literate. If the ratio of the adults to that of the children is 2 : 3, what percent of the population is litereted.a)25%b)75%c)50%d)80%Correct answer is option 'B'. Can you explain this answer? for Class 9 2024 is part of Class 9 preparation. The Question and answers have been prepared according to the Class 9 exam syllabus. Information about In a city 40% of adults are illiterate while 85% of the children are literate. If the ratio of the adults to that of the children is 2 : 3, what percent of the population is litereted.a)25%b)75%c)50%d)80%Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for Class 9 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for In a city 40% of adults are illiterate while 85% of the children are literate. If the ratio of the adults to that of the children is 2 : 3, what percent of the population is litereted.a)25%b)75%c)50%d)80%Correct answer is option 'B'. Can you explain this answer?.
Solutions for In a city 40% of adults are illiterate while 85% of the children are literate. If the ratio of the adults to that of the children is 2 : 3, what percent of the population is litereted.a)25%b)75%c)50%d)80%Correct answer is option 'B'. Can you explain this answer? in English & in Hindi are available as part of our courses for Class 9.
Download more important topics, notes, lectures and mock test series for Class 9 Exam by signing up for free.
Here you can find the meaning of In a city 40% of adults are illiterate while 85% of the children are literate. If the ratio of the adults to that of the children is 2 : 3, what percent of the population is litereted.a)25%b)75%c)50%d)80%Correct answer is option 'B'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
In a city 40% of adults are illiterate while 85% of the children are literate. If the ratio of the adults to that of the children is 2 : 3, what percent of the population is litereted.a)25%b)75%c)50%d)80%Correct answer is option 'B'. Can you explain this answer?, a detailed solution for In a city 40% of adults are illiterate while 85% of the children are literate. If the ratio of the adults to that of the children is 2 : 3, what percent of the population is litereted.a)25%b)75%c)50%d)80%Correct answer is option 'B'. Can you explain this answer? has been provided alongside types of In a city 40% of adults are illiterate while 85% of the children are literate. If the ratio of the adults to that of the children is 2 : 3, what percent of the population is litereted.a)25%b)75%c)50%d)80%Correct answer is option 'B'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice In a city 40% of adults are illiterate while 85% of the children are literate. If the ratio of the adults to that of the children is 2 : 3, what percent of the population is litereted.a)25%b)75%c)50%d)80%Correct answer is option 'B'. Can you explain this answer? tests, examples and also practice Class 9 tests.
|
|
Explore Courses for Class 9 exam
|
|
Suggested Free Tests
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
|
© EduRev
|
Education Revolution
|
Follow Us
|
Signup to see your scores
go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup