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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?
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 = 
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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%.
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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?
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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?.
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