Model 8 population based Section-Wise Topic Notes With Detailed Explanation And Example Questions
MOST IMPORTANT quantitative aptitude - 11 EXERCISES
-
Top 199+ Percentage Aptitude Questions Answers Mcq Quiz »
-
New 159 Percentage Aptitude (Increase, Decrease) Mcq Quiz »
-
Latest 200+ Aptitude Percentage Based Questions Mcq Quiz »
-
New 250+ Aptitude Percentage Questions With Solutions Mcq »
-
255+ Top Aptitude Percentage Shortcuts Questions Mcq Test »
-
249+ Aptitude Percentage Problems with Solutions Mcq Quiz »
-
New Aptitude Percentage Questions with Solutions Mcq Quiz »
-
199+ Percentage Aptitude Questions Solutions Mcq for Bank »
-
Top 299+ Aptitude Percentage Questions Mcq Quiz Bank Exam »
-
Top 199+ Percentage Aptitude Online Test For UPSC TNPSC »
-
New 150+ Percentage Question & Answer for All Bank Exams »
The following question based on percentage topic of quantitative aptitude
(a) 60
(b) 36
(c) 40
(d) 50
The correct answers to the above question in:
Answer: (a)
Let the population of the city be 100.
Total illiterate people = 40
Poor people = 60; Rich people = 40
Illiterate rich people = ${40 × 10}/100$ = 4
Illiterate poor people = 40 – 4 = 36
Required percent = $36/60 × 100$ = 60%
Discuss Form
Read more population based Based Quantitative Aptitude Questions and Answers
Question : 1
If a man receives on one-fourth of his capital 3% interest, on two third 5% and on the remainder 11%, the percentage he receives on the whole is
a) 5
b) 4.5
c) 5.5
d) 5.2
Answer »Answer: (a)
Required percent
= $1/4 × 3 + 2/3 × 5 + (1 - 1/4 - 2/3) × 11$
= $3/4 + 10/3 + 11/12 = {9 + 40 + 11}/12$ = 5%
Question : 2
In a factory, the production of cycles rose to 48, 400 from 40,000 in 2 years. The rate of growth per annum is
a) 8%
b) 9%
c) 10.5%
d) 10%
Answer »Answer: (d)
Using Rule 17,
If the rate of increase per annum be R%, then
A = P$(1 + R/100)^T$
48400 = 40000$(1 + R/100)^2$
$484/400 = (1 + R/100)^2$
$121/100 = (11/10)^2 = (1 + R/100)^2$
1 + $R/100 = 11/10$
$R/100 = 11/10 - 1 = 1/10$
$R = 100/10$ = 10% per annum
Question : 3
The population of a village increases by 5% annually. If its present population is 4410, then its population 2 years ago was
a) 4000
b) 4500
c) 3800
d) 3500
Answer »Answer: (a)
Using Rule 17,
If the population of village two years ago be $P_0$,
then P = $P_0(1 + R/100)^T$
4410 = $P_0(1 + 5/100)^2$
4410 = $P_0(1 + 1/20)^2$
4410 = $P_0(21/20)^2$
4410 = ${441P_0}/400$
$P_0 = {4410 × 400}/441$ = 4000
Question : 4
The population of a city is 20000. It increases by 20% during the first year and 30% during the second year. The population after two years will be:
a) 40000
b) 32000
c) 31200
d) 30000
Answer »Answer: (c)
Population of city after two years
= $P(1 + R_1/100)(1 + R_2/100)$
= $20000(1 + 20/100)(1 + 30/100)$
= $20000 × 120/100 × 130/100$ = 31200
Question : 5
Present population of a village is 67600. It has been increasing annually at the rate of 4%. What was the population of the village two years ago ?
a) 63000
b) 62500
c) 64756
d) 65200
Answer »Answer: (b)
Using Rule 17,
Population of the village two years ago
= $P/(1 + R/100)^2 = 67600/(1 + 4/100)^2$
= ${67600 × 25 × 25}/{26 × 26}$ = 62500
Question : 6
A man received Rs.8,80,000 as his annual salary of the year 2007 which was 10% more than his annual salary in 2006. His annual salary in the year 2006 was
a) Rs.8,00,000
b) Rs.4,80,000
c) Rs.4,00,000
d) Rs.8,40,000
Answer »Answer: (a)
Using Rule 17,
Let the man's annual salary in 2006 be Rs.x.
${110x}/100$ = 880000
$x = {880000 × 100}/110$ = Rs.800000
GET percentage PRACTICE TEST EXERCISES
model 1 simple percentage questions
model 2 net increase or decrease in %
model 3 reducing & exceeding prices
model 4 x & y comparison
model 5 income & expenditure
model 6 consumption & remaining
model 7 marks scored in examinations
Model 8 population based
model 9 voters & election
model 10 percentage with allegations & mixture
model 11 percentage with ratios
percentage Shortcuts and Techniques with Examples
-
model 1 simple percentage questions
Defination & Shortcuts … -
model 2 net increase or decrease in %
Defination & Shortcuts … -
model 3 reducing & exceeding prices
Defination & Shortcuts … -
model 4 x & y comparison
Defination & Shortcuts … -
model 5 income & expenditure
Defination & Shortcuts … -
model 6 consumption & remaining
Defination & Shortcuts … -
model 7 marks scored in examinations
Defination & Shortcuts … -
Model 8 population based
Defination & Shortcuts … -
model 9 voters & election
Defination & Shortcuts … -
model 10 percentage with allegations & mixture
Defination & Shortcuts … -
model 11 percentage with ratios
Defination & Shortcuts …
Verbal Reasoning
Question & Answer Quiz
Non Verbal Reasoning
Question & Answer Quiz
Quantitative Aptitude
Question & Answer Quiz
Computer MCQ
Question & Answer Quiz
General English
Question & Answer Quiz
History GK
Question & Answer Quiz
Polity GK
Question & Answer Quiz
Geography GK
Question & Answer Quiz
Economy GK
Question & Answer Quiz
General Awareness GK
Question & Answer Quiz
Recently Added Subject & Categories For All Competitive Exams
Most Important Antonyms Vocabulary - IBPS Clerk Prelims 2024
Latest Antonyms multiple choice questions and answers with free PDFfor IBPS Clerk Prelims 2024. English Vocabulary practice exercise for all bank exam
Continue Reading »
Syllogism Practice Questions Answers PDF - IBPS Clerk 2024
Practice Verbal Reasoning Syllogism multiple choice questions and answers with Fully solved explanation, PDF for the IBPS Clerk Prelims 2024 Bank Exam
Continue Reading »
IBPS Clerk Prelims 2024 Synonyms Questions Solved Answers
Most important IBPS Clerk Prelims 2024 Synonyms and Antonyms multiple choice questions and answers with detailed solutions, English vocabulary PDF Download
Continue Reading »
New Cloze Test Questions and Answers PDF - IBPS Clerk 2024
The most important Cloze Test questions with detailed answers for upcoming IBPS Clerk prelims 2024. Latest English verbal ability practice MCQs, PDF
Continue Reading »