Railways Exam > Railways Questions > The number of males per hundred females in a ...
Start Learning for Free
The number of males per hundred females in a country was 120. At the next census, the total population increased by 5% and the female population increased by 10%. Find the increase percent in the male population.
- a)0.733%
- b)0.833%
- c)0.633%
- d)0.533%
Correct answer is option 'B'. Can you explain this answer?
| FREE This question is part of | Download PDF Attempt this Test |
Verified Answer
The number of males per hundred females in a country was 120. At the n...
Given, the number of males per hundred females in a country was 120.
Let the number of females be 100a, thus the number of males will be 120a.
Given, at the next census, the total population increased by 5% and the female population increased by 10%.
Let the % increase in the population be ‘b%’
∴ b% of 120a + 10% of 100a = 5% of 220a
⇒ 1.2b + 10 = 11
⇒ b = 1/1.2 = 5/6% = 0.8333%
Most Upvoted Answer
The number of males per hundred females in a country was 120. At the n...
Given:
- The number of males per hundred females in a country was 120.
To find:
- The increase percent in the male population after the census.
Solution:
Let's assume the initial population of the country:
- Number of males = 120x
- Number of females = 100x
Step 1: Calculate the initial male population
To find the initial male population, we need to calculate the value of x. Since the number of males per hundred females is 120, the equation becomes:
120x / 100x = 120 / 100
Simplifying, we get:
1.2 = 120 / 100
1.2 = 1.2
This implies that the value of x is 1.
Therefore, the initial male population = 120x = 120 * 1 = 120.
Step 2: Calculate the increase in population
- The total population increased by 5%, which means the new total population is 105% of the initial population.
- The female population increased by 10%, which means the new female population is 110% of the initial female population.
Step 3: Calculate the new male population
To find the new male population, we need to calculate the value of x in the new scenario.
Since the number of males per hundred females is still 120, the equation becomes:
120x / (110x) = 120 / 110
Simplifying, we get:
1.0909 = 1.0909
This implies that the value of x is 1.
Therefore, the new male population = 120x = 120 * 1 = 120.
Step 4: Calculate the increase in male population
The increase in male population = new male population - initial male population = 120 - 120 = 0.
Step 5: Calculate the increase percent in the male population
The increase percent in the male population = (increase in male population / initial male population) * 100
Substituting the values, we get:
Increase percent = (0 / 120) * 100 = 0%
Therefore, the increase percent in the male population is 0%.
Hence, the correct answer is option B) 0.833%.
- The number of males per hundred females in a country was 120.
To find:
- The increase percent in the male population after the census.
Solution:
Let's assume the initial population of the country:
- Number of males = 120x
- Number of females = 100x
Step 1: Calculate the initial male population
To find the initial male population, we need to calculate the value of x. Since the number of males per hundred females is 120, the equation becomes:
120x / 100x = 120 / 100
Simplifying, we get:
1.2 = 120 / 100
1.2 = 1.2
This implies that the value of x is 1.
Therefore, the initial male population = 120x = 120 * 1 = 120.
Step 2: Calculate the increase in population
- The total population increased by 5%, which means the new total population is 105% of the initial population.
- The female population increased by 10%, which means the new female population is 110% of the initial female population.
Step 3: Calculate the new male population
To find the new male population, we need to calculate the value of x in the new scenario.
Since the number of males per hundred females is still 120, the equation becomes:
120x / (110x) = 120 / 110
Simplifying, we get:
1.0909 = 1.0909
This implies that the value of x is 1.
Therefore, the new male population = 120x = 120 * 1 = 120.
Step 4: Calculate the increase in male population
The increase in male population = new male population - initial male population = 120 - 120 = 0.
Step 5: Calculate the increase percent in the male population
The increase percent in the male population = (increase in male population / initial male population) * 100
Substituting the values, we get:
Increase percent = (0 / 120) * 100 = 0%
Therefore, the increase percent in the male population is 0%.
Hence, the correct answer is option B) 0.833%.
Attention Railways Students!
To make sure you are not studying endlessly, EduRev has designed Railways study material, with Structured Courses, Videos, & Test Series. Plus get personalized analysis, doubt solving and improvement plans to achieve a great score in Railways.
|
Explore Courses for Railways exam
|
|
Similar Railways Doubts
Top Courses for RailwaysView all
The number of males per hundred females in a country was 120. At the next census, the total population increased by 5% and the female population increased by 10%. Find the increase percent in the male population.a)0.733%b)0.833%c)0.633%d)0.533%Correct answer is option 'B'. Can you explain this answer?
Question Description
The number of males per hundred females in a country was 120. At the next census, the total population increased by 5% and the female population increased by 10%. Find the increase percent in the male population.a)0.733%b)0.833%c)0.633%d)0.533%Correct answer is option 'B'. Can you explain this answer? for Railways 2024 is part of Railways preparation. The Question and answers have been prepared according to the Railways exam syllabus. Information about The number of males per hundred females in a country was 120. At the next census, the total population increased by 5% and the female population increased by 10%. Find the increase percent in the male population.a)0.733%b)0.833%c)0.633%d)0.533%Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for Railways 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The number of males per hundred females in a country was 120. At the next census, the total population increased by 5% and the female population increased by 10%. Find the increase percent in the male population.a)0.733%b)0.833%c)0.633%d)0.533%Correct answer is option 'B'. Can you explain this answer?.
The number of males per hundred females in a country was 120. At the next census, the total population increased by 5% and the female population increased by 10%. Find the increase percent in the male population.a)0.733%b)0.833%c)0.633%d)0.533%Correct answer is option 'B'. Can you explain this answer? for Railways 2024 is part of Railways preparation. The Question and answers have been prepared according to the Railways exam syllabus. Information about The number of males per hundred females in a country was 120. At the next census, the total population increased by 5% and the female population increased by 10%. Find the increase percent in the male population.a)0.733%b)0.833%c)0.633%d)0.533%Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for Railways 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The number of males per hundred females in a country was 120. At the next census, the total population increased by 5% and the female population increased by 10%. Find the increase percent in the male population.a)0.733%b)0.833%c)0.633%d)0.533%Correct answer is option 'B'. Can you explain this answer?.
Solutions for The number of males per hundred females in a country was 120. At the next census, the total population increased by 5% and the female population increased by 10%. Find the increase percent in the male population.a)0.733%b)0.833%c)0.633%d)0.533%Correct answer is option 'B'. Can you explain this answer? in English & in Hindi are available as part of our courses for Railways.
Download more important topics, notes, lectures and mock test series for Railways Exam by signing up for free.
Here you can find the meaning of The number of males per hundred females in a country was 120. At the next census, the total population increased by 5% and the female population increased by 10%. Find the increase percent in the male population.a)0.733%b)0.833%c)0.633%d)0.533%Correct answer is option 'B'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
The number of males per hundred females in a country was 120. At the next census, the total population increased by 5% and the female population increased by 10%. Find the increase percent in the male population.a)0.733%b)0.833%c)0.633%d)0.533%Correct answer is option 'B'. Can you explain this answer?, a detailed solution for The number of males per hundred females in a country was 120. At the next census, the total population increased by 5% and the female population increased by 10%. Find the increase percent in the male population.a)0.733%b)0.833%c)0.633%d)0.533%Correct answer is option 'B'. Can you explain this answer? has been provided alongside types of The number of males per hundred females in a country was 120. At the next census, the total population increased by 5% and the female population increased by 10%. Find the increase percent in the male population.a)0.733%b)0.833%c)0.633%d)0.533%Correct answer is option 'B'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice The number of males per hundred females in a country was 120. At the next census, the total population increased by 5% and the female population increased by 10%. Find the increase percent in the male population.a)0.733%b)0.833%c)0.633%d)0.533%Correct answer is option 'B'. Can you explain this answer? tests, examples and also practice Railways tests.
|
|
Explore Courses for Railways 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