model 10 percentage with allegations & mixture 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) 3 : 1
(b) 1 : 2
(c) 1 : 3
(d) 2 : 1
The correct answers to the above question in:
Answer: (c)
Let x litres of first mixture is mixed with y litres of the second mixture.
According to the question,
${x × 30 /100 + y × 50/100}/{x × 70/100 + y × 50/100} = 45/55$
${0.3x + 0.5y}/{0.7x + 0.5y} = 9/11$
6.3x + 4.5y = 3.3x + 5.5y
6.3x – 3.3x = 5.5y – 4.5y
3x = y ⇒ $x/y = 1 : 3$
Discuss Form
Read more allegations mixture based Based Quantitative Aptitude Questions and Answers
Question : 1
An ore contains 25% of an alloy that has 90% iron. Other than this, in the remaining 75% of the ore, there is no iron. To obtain 60 kg of pure iron, the quantity of the ore needed (in kgs) is approximately :
a) 300
b) 250.57
c) 266.67
d) 275.23
Answer »Answer: (c)
In 4 kg of ore, iron = 0.9 kg.
Quantity of ore for 60 kg of iron
= ${60 × 4}/0.9$ = 266.67 kg
Question : 2
A litre of pure alcohol is added to 6 litres of 30% alcohol solution. The percentage of water in the solution is
a) 40%
b) 50%
c) 65%
d) 60%
Answer »Answer: (d)
In 30% alcohol solution,
Alcohol = $30/100 × 6$ =1.8litres
Water = 4.2 litres
On mixing 1 litre of pure alcohol,
Percentage of water =$4.2/7 × 100$ = 60%
Question : 3
A sample of 50 litres of glycerine is found to be adulterated to the extent of 20%. How much pure glycerine should be added to it so as to bring down the percentage of impurity to 5% ?
a) 149 litres
b) 155 litres
c) 150 litres
d) 150.4 litres
Answer »Answer: (c)
Glycerine in mixture = 40 litres
Water = 10 litres
Let x litres of pure glycerine is mixed with the mixture.
${40 + x}/{50 + x} = 95/100 = 19/20$
800 + 20x = 950 + 19x
x = 950 – 800 = 150 litres.
Question : 4
1 litre of water is added to 5 litres of alcohol-water solution containing 40% alcohol strength. The strength of alcohol in the new solution will be
a) 33$1/3$%
b) 30%
c) 33%
d) 33$2/3$%
Answer »Answer: (a)
Alcohol in original solution = $40/100 × 5$ = 2 litres
Water in original solution = 3 litres
On adding 1 litre water, water becomes 4 litres.
Now, 6 litres of solution contains 2 litres of alcohol.
100 litres of solution contains = $2/6 × 100$
= $100/3 = 33{1}/3%$ alcohol.
Question : 5
A vessel has 60 litres of solution of acid and water having 80% acid. How much water be added to make it a solution in which acid forms 60% ?
a) None of these
b) 48 litres
c) 20 litres
d) 36 litres
Answer »Answer: (c)
In 60 litres of solution,
Water = ${60×20}/100$ = 12 litres
On adding x litres of water,
${12 + x}/{60 + x}$× 100 = 40
60 + 5x = 120 + 2x
3x = 60 ⇒ x = 20 litres
Question : 6
8 litres of water is added to 32 litres of a solution containing 20% of alcohol in water. What is the approximate concentration of alcohol in the solution now ?
a) 24%
b) 16%
c) 8%
d) 12%
Answer »Answer: (c)
In 32 litres of solution,
Alcohol = ${32 × 20}/100$ = 6.4 litres
Water = 32 – 6.4 = 25.6 litres
On adding 8 litres of water,
Required percent = $6.4/40 × 100$ = 16%
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 »