type 1 basic concepts of ratio & proportion Practice Questions Answers Test with Solutions & More Shortcuts
ratio & proportion PRACTICE TEST [9 - EXERCISES]
type 1 basic concepts of ratio & proportion
type 2 age based ratio & proportion problems
type 3 addition subtraction product on ratio & proportion
type 4 income & expenditure based ratio & proportion problems
type 5 shares & partnership based ratio & proportion problems
type 6 fractions based ratio & proportion problems
type 7 finding sum difference product based ratio & proportion problems
type 8 alligation & mixtures based ratio & proportion problems
type 9 coins & rupees based ratio & proportion problems
Question : 21 [SSC CGL Prelim 2000]
The fourth proportional to 0.12, 0.21, 8 is :
a) 14
b) 17
c) 56
d) 8.9
Answer »Answer: (a)
Let the fourth proportional be x
Then, ${0.12}/{0.21} = 8/x$
or $x =8 ×{0.21}/{0.12}$
or $x =8 × 21/12$
or x = 14
Using Rule 16Fourth Proportional - Let x be the fourth proportional of a, b and c, then a:b::c:x (Real condition)$a/b=c/x ⇒ ax=bc$$x={bc}/a$Fourth proportional of a, b and c =${bc}/a$
Fourth proportion = ${bc}/a$
= ${0.21 ×18}/{0.12}$= 14
Question : 22 [SSC CGL Prelim 2005]
If x : y = 3 : 2, then the ratio $2x^2 + 3y^2 : 3x^2 - 2y^2$ is equal to :
a) 30 : 19
b) 5 : 3
c) 6 : 5
d) 12 : 5
Answer »Answer: (a)
x : y = 3 : 2
$x^2 : y^2$ = 9 : 4
${2x^2 + 3y^2}/{3x^2 - 2y^2} ={2{x^2/y^2}+ 3}/{3{x^2/y^2} - 2}$
= ${2 ×{9/4} +3}/{3× 9/4- 2}={{18 + 12}/4}/{{27 - 8}/4}$
= 30 : 19
Question : 23 [SSC CGL Prelim 2007]
The ratio of A to B is 4 : 5 and that of B to C is 2 : 3. If A equals 800, C equals
a) 1500
b) 2000
c) 1200
d) 1000
Answer »Answer: (a)
A : B = 4 : 5
B : C = 2 : 3
A : B : C = 4 × 2 : 5 × 2 : 5 × 3
= 8 : 10 : 15
If A equals 800, then C equals 1500.
Question : 24 [SSC CGL Prelim 2003]
If a : b = $2/9: 1/3, b : c = 2/7 : 5/14 and d : c = 7/10 : 3/5$ then a : b : c : d is
a) 8 : 12 : 15 : 7
b) 30 : 35 : 24 : 16
c) 16 : 24 : 30 : 35
d) 4 : 6 : 7 : 9
Answer »Answer: (c)
Using Rule 19 (ii),
a : b = $2/9 : 1/3$ = 2 : 3
b : c = $2/7 :5/14$ = 4 : 5
d : c = $7/10: 3/5$ = 7 : 6
c : d = 6 : 7
Thus,
| a : b | = | 2 : 3 |
| b : c | = | 4 : 5 |
| c : d | = | 6 : 7 |
| a : b : c : d | = | 2×4×6 : 3×4×6 :3×5×6 : 3×5×7 |
= 16 : 24 : 30 : 35
Question : 25 [SSC CGL Prelim 2005]
If A : B : C = 2 : 3 : 4, then ratio $A/B : B/C : C/A$ is equal to
a) 8 : 9 : 24
b) 4 : 9 : 16
c) 8 : 9 : 12
d) 8 : 9 : 16
Answer »Answer: (a)
A : B : C = 2 : 3 : 4
$A/B = 2/3, B/C = 3/4, C/A= 4/2 = 2$
$A/B : B/C : C/A = 2/3 : 3/4 : 2/1$
= 8 : 9 : 24
IMPORTANT quantitative aptitude EXERCISES
-
199+ Ratio Proportion Basic Concepts MCQ Questions Answers »
-
Top 199+ Ratio Proportion Age Based MCQ Questions Answers »
-
159+ Ratios Proportions Addition Subtraction product MCQ »
-
199+ Ratio Proportion Income, Expenditure Problems MCQS »
-
199+ Partnership Aptitude (Ratio) MCQ Questions Answers »
-
259+ Ratio and Proportion (fractions) Aptitude MCQ Quiz »
-
199+ Ratio and Proportion Aptitude Questions Answers MCQ »
-
299+ Alligation and Mixture Problems Aptitude MCQ Quiz »
-
249+ Ratio and Proportion Coins Based Questions Answers »
type 1 basic concepts of ratio & proportion Online Quiz
Click to Start..quantitative aptitude CATEGORIES
RECENT BLOGS
![SSC CHSL 2023 Tier 2: Syllabus PDF & Exam Pattern [Changed]](https://careericons.com/adminicon/bunch/images/ssc-chsl-tier-2-2023-new-revised-syllabus-pdf-s.jpg "SSC CHSL 2023 Tier 2: Syllabus PDF & Exam Pattern [Changed]")
Recently Added Subject & Categories For All Competitive Exams
Ratio and Proportion Questions with Solutions, IBPS Clerk
New Ratio and Proportion Quants Aptitude based Multiple Choice Questions and Answers Practice Test Series, Quiz & Mock Test for IBPS Clerk Prelims 2024 Exam
Continue Reading »
Top Analogy Reasoning Ability For IBPS Clerk Prelims 2024
Most Important Analogy based Verbal Reasoning Multiple choice questions and answers practice quiz series PDF, Free New Mock tests For IBPS Clerk Prelims 2024
Continue Reading »
SSC STENO: Mensuration Area & Volume Questions Test PDF
Free Mensuration Area and Volume Aptitude-based Practice multiple questions with solutions, Quiz, Full Mock Test & PDF for SSC Steno (Grade C & D) 2024 Exam
Continue Reading »
SSC STENO: Speed Time and Distance MCQ Questions Test PDF
Free Time and Distance Aptitude-based Practice multiple questions with solutions, Quiz series, Mock Test & Download PDF for SSC Steno (Grade C & D) 2024 Exam
Continue Reading »