[LATEST]\$type=sticky\$show=home\$rm=0\$va=0\$count=4\$va=0

Average Quiz-2

Maths is an important subject in CLAT,DULLB & Other Law Exams. In any of law exam, Maths carries weightage of 20 -25 % of questions. With focused practice good marks can be fetched from this section. These questions are very important in achieving your success in CLAT, DULLB and Other Law Exams..

Q1.The average age of a group of friends is 34 years. If five new friends with an average age of 30 years join the group, the average age of the entire group becomes 32 years. How many people were there in the group initially?

•  4
•  5
•  6
•  7
Solution
Old combined age = 34x
New combined age
= (5 + x) x 32 = 34x + (5 x 30)
Ãž 32x + 160 = 34x + 150

\ x = 5
Q2. If 20 kg of wheat costing Rs 16 a kg is mixed with Rs, 16 kg of a second variety of wheat costing Rs 25 a kg, then what is the average cost of the resulting mixture?

•  25
•  24
•  22
•  20
Solution
Avg = (20 x 16 + 16 x 25)/ (20 + 16)

= 720/36 = 20

Q3. If two kinds of grapes costing Rs 16 a kg and Rs 21 a kg are mixed in the ratio of 2 : 3 then find the cost of mixture per kg?
•  17
•  20
•  18
•  19
Solution
Avg = (16 x 2 + 21 x 3)/ (2+3) = 95/9 = 19

Q4.  If 15 litres of 20% alcohol is mixed with 2 litres of 24% alcohol, then find the concentration of the resulting solution?
•  588/97
•  588/27
•  588/57
•  588/7
Solution
(15 x 20+ 12 x 24)/(15 + 12) = (588)/ 27

Q5.Find two numbers whose AM is 12.5 and GM is 10?

•  20,15
•  18,24
•  20,5
•  12,16
Solution
a + b = 25; ab = 100
a + 100/a = 25
Ãž a2 + 100 - 25a = 0 Ãž a2 - 25a + 100 = 0
Ãž a2 - 20a - 5a + 100 = 0
Ãž a(a-20) - 5(a-20) = 0
Ãž (a-5)(a-20) = 0
Therefore, a = 5 or a = 20
If a = 5; b = 20
If b = 20; a = 5

Q6. The average age of a husband and his wife was 23 years at the time of their marriage. After five years they have one-year old child. The average age of the family now is:

•  19 years
•  73 years
• 28.5 years
•  29.3 years
Solution
New avg. age=((23+23)+(5+5)+1}/3 =19

Q7. The average salary of all the workers in a workshop is Rs. 8000. The average salary of 7 technicians is Rs.12000 and the average salary of the rest is Rs. 6000. The total number of workers in the workshop is:
•  20
•  21
•  22
•  23
Solution
8000 =  {(7X12000)+(xX6000)}/(x+7)
8x + 56 = 84 + 6x
Ãž x = 14.

Hence Total number of workers are 7+14 = 21

Q8. 3 years ago, the average age of a family of 5 members was 17 years. A baby having been born, the average age of the family is the same today. The present age of the baby is

•   1 years
•   11/2 years
•   2 years
•   3 years
Solution
Combined age of family 3 years ago = 5x17 = 85
Combined age of family now = 6 x 17 = 102
Baby’s age,

Ãž 102 = 85 + 5 x 3 + b         \ b = 2

Q9.In an examination, a pupil's average marks were 63 per paper. If he had obtained 20 more marks for his. Geography paper and 2 more marks for his History paper, his average per paper would have been 65. How many papers were there in the examination?

•  8
•  9
•  10
•  11
Solution
Old avg. = 63
New avg. = 65
Let n be number of papers

65n = 63n + 20 + 2    Ãž n = 11

Q10.The average age of students of a class is 15.8 years. The average age of boys in the class is 16.4 years and that of the girls is 15.4 years. The ratio of the number of boys to the number of girls in the class is:
•  1 : 2
•  2 : 3
•  3 : 4
•  3 : 5
Solution
Let n be ratio of boys to girls
15.8 = (16.4n+15)/(n+1) Ãž .6n = .4 Ãž n = 2/3
[Alternatively] B:G = x:y
[(16.4)(x)+(15.4)(y)]/(x+y) = 15.8(x+y)

x:y = 2:3

Want to Know More
Please fill in the details below:

Recent HM Posts\$type=three\$c=3\$author=hide\$comment=hide\$date=hide\$rm=hide\$snippet=hide

Name

Abetment,1,Absolute Liability,1,Admit Card,12,admit-card,1,Agency,1,AIBE,2,AILET,4,AILET 2020 Admission,1,AILET Exam,2,AILET Mock Test,1,Alphabetical Series,3,AMU Application Forms 2022,1,Anagrams,1,Analogies,3,Answer Key,2,answer-key,6,aptitude test preparation for BBA.,1,Attempt,1,Average,1,BA entrance exam 2019. BBA coaching classes in Delhi,1,BA-LLB,2,Bailment,1,BBA,1,BBA Aptitude Test,1,BBA Coaching Ghaziabad,1,BBA entrance exam,2,BBA entrance exam preparation,1,BBA entrance exams,1,BBA entrance in Delhi,1,BBA exam,4,BBA exam crash course,1,BBA merit list 2019,1,BBA Mock Test,1,BBA Study Books,1,BBA Study Material,1,BHU LLB 2019,1,BHU LLB 2020 Application Form,1,BHU-LLB,3,Blood Relation,2,Breach of Contract,1,Capacity of Parties,1,Cheating,1,Clat,8,CLAT 2019 Analysis,1,Clat admission,1,CLAT Coaching,2,CLAT Coaching Delhi,1,CLAT coaching in Noida,1,CLAT Entrance Exam,2,CLAT Entrance Test,1,CLAT Exam,3,CLAT Exam Pattern,2,CLAT Mock Test,1,CLAT Preparation,1,CLAT previous year question paper,1,CLAT Study Material,1,CLAT-GK,1,Clock Calendar,4,Cloze Test,7,Coding Decoding,3,Compound Interest,1,Consideration,1,Contract,12,Contract-LA,8,Criminal Breach of Trust,1,Criminal Conspiracy,1,cut off,5,cut-off,3,Dacoity,1,Dangerous Premises,1,Data Interpretation,1,Defamation,1,Dice Test,1,Direction Sense Test,2,DU LLB 2017,1,DU LLB Brochure,1,DU LLB Coaching,1,DU LLB Entrence,2,DU LLB Exam,6,DU LLB exam Coaching,1,DU-LLB,3,English,25,Exam,3,Exam Pattern,5,Extortion,1,featured-articles,1,Free Consent,1,General Defenses,1,General Exceptions,1,Geometry,1,Grammar,2,Height Distance,1,Hotel Management,148,Hotel Management Coaching in Delhi,1,Hotel Management Coaching,1,Hotel Management Colleges,1,Hotel Management Entrance Exam,3,How to Become a Chef,1,how to crack CLAT,1,how to crack CLAT with coaching.,1,how to prepare for BBA 2019?,1,Idioms,3,IHM,23,IHM Exam 2018,1,IHM BOOK,1,IHM Exam Syllabus,1,IHM in Ahmedabad,1,IHM in Bangalore,1,IHM in Bhopal,1,IHM in Bhubaneswar,1,IHM in Chandigarh,1,IHM in Chennai,1,IHM in Goa,1,IHM in Gurdaspur,1,IHM in Guwahati,1,IHM in Gwalior,1,IHM in Hajipur,1,IHM in Hyderabad,1,IHM in Jaipur,1,IHM in Kolkata,1,IHM in Lucknow,1,IHM in Shimla,1,IHM in Srinagar,1,IHM in Trivandrum,1,Indian Partnership Act 1932,1,IPC,11,IPC-LA,7,IPMAT 2020,2,IPU CET,1,IPU CET application forms,1,IPU CET Exam,2,IPU LLB Exam,1,JMI-BA.LLB,2,Jumbled Sentences,2,Latest articles,257,Latest News,15,Law,328,Law of Torts,1,Law Study Material,1,law-B.com,1,Law-Entrances,1,Legal Aptitude,60,Liability of Owner,1,LLB-Colleges,1,LLB-LLM,1,LLB-LLM BHU,1,LSAT Exam,1,LSAT Exam Coaching,1,MAH CET 2020,1,Management,114,Mensuration,1,Mixture Allegation,1,NCHM JEE 2017,1,NCHM JEE Cutoff 2017,1,NCHMCT,6,NCHMCT application form 2020,2,NCHMCT Coaching,1,NCHMCT Courses Class 12th Students,1,NCHMCT Exam,3,NCHMCT Exam Pattern,2,NCHMCT in Mumbai,1,NCHMCT JEE,2,NCHMCT JEE coaching,1,NCHMCT JEE Entrance,1,NCHMCT Registration,1,Negligence,1,Nervous Shock,1,New CLAT Pattern,1,news,2,Notification,1,Nuisance,1,Number Puzzle,2,Number Series,3,Number System,1,Offences against Human Life,1,Offences Documents,1,Offences Marriage,1,Offer Acceptance,1,Others,39,Partnership,1,Percentage,1,Permutation Combination,1,Probability,1,Profit Loss,1,Progression,1,Quant,17,Quantitative Aptitude,17,Quasi Contracts,1,Quiz,68,QZ-1 LA,1,Ratio Proportion,1,Reasoning,28,Results,13,Robbery,1,Seating Arrangement,3,Sedition,1,SET 2020 Application Form,1,SET 2020 Application Forms,1,SET 2020 Important dates,1,SET Entrance Exam,2,Simple Interest,1,Spelling,3,Strict Liability,1,Study Notes,64,Success Stories,1,syllabus,6,Syllogism,2,Theft,1,Time Speed Distance,1,Tips & Strategy,13,Tips and Strategy,2,Tort,12,Tort-LA,11,Trespass to Goods and Conversion,1,University for Clat,1,Venn Diagram,3,Verbal Ability,24,Vicarious Liability,1,Vicarious Liability of State,1,Vocabulary,3,Void Agreements,1,Void Contract,1,Work Pipe Cistern,1,
ltr
item
ClearExam: Best CLAT Coaching in Delhi | Best CLAT Coaching Center | CLAT Online Coaching: quants-average-quiz2
quants-average-quiz2
https://3.bp.blogspot.com/-9wHKimqYhCI/XIo8enXFQVI/AAAAAAAACCU/ioMqh6x434MEa5Jjh0q1OvYQEH7ofEQxwCLcBGAs/s1600/quants-average.jpg
https://3.bp.blogspot.com/-9wHKimqYhCI/XIo8enXFQVI/AAAAAAAACCU/ioMqh6x434MEa5Jjh0q1OvYQEH7ofEQxwCLcBGAs/s72-c/quants-average.jpg
ClearExam: Best CLAT Coaching in Delhi | Best CLAT Coaching Center | CLAT Online Coaching
https://www.clearlawentrance.com/2019/03/quants-average-quiz2.html
https://www.clearlawentrance.com/
https://www.clearlawentrance.com/
https://www.clearlawentrance.com/2019/03/quants-average-quiz2.html
true
8755676406601649542
UTF-8