MCQ - Ratio, "Ratio, Proportions, indices and logarithms" CA Foundation Notes | EduRev

Quantitative Aptitude for CA CPT

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CA Foundation : MCQ - Ratio, "Ratio, Proportions, indices and logarithms" CA Foundation Notes | EduRev

 Page 1


Ratio and Proportion,  
Indices and Logarithm 
Paper 4: Quantitative Aptitude Chapter 1 
Part I: Ratio & Proportion 
 
Ms. Ritu Gupta, MA (Maths.) 
Page 2


Ratio and Proportion,  
Indices and Logarithm 
Paper 4: Quantitative Aptitude Chapter 1 
Part I: Ratio & Proportion 
 
Ms. Ritu Gupta, MA (Maths.) 
Illustration 1 
19 
Page 3


Ratio and Proportion,  
Indices and Logarithm 
Paper 4: Quantitative Aptitude Chapter 1 
Part I: Ratio & Proportion 
 
Ms. Ritu Gupta, MA (Maths.) 
Illustration 1 
19 
Illustration 2 
The ratio compounded of duplicate ratio of 4:5, triplicate 
ratio of 1:3. sub duplicate ratio of 81:256 and sub triplicate 
ratio of 125:512 is 
(a) 4 : 512 (b) 3 : 32 (c) 1 : 120 (d) None of these 
 
Solution  
The duplicate of ratio of 4 : 5 is  
  4
2 
: 5
2 
 = 16 : 25 
 
The triplicate ratio of 1 : 3 is  
 1
3 
: 3
3 
 = 1 : 27 
 
 
 
20 
Page 4


Ratio and Proportion,  
Indices and Logarithm 
Paper 4: Quantitative Aptitude Chapter 1 
Part I: Ratio & Proportion 
 
Ms. Ritu Gupta, MA (Maths.) 
Illustration 1 
19 
Illustration 2 
The ratio compounded of duplicate ratio of 4:5, triplicate 
ratio of 1:3. sub duplicate ratio of 81:256 and sub triplicate 
ratio of 125:512 is 
(a) 4 : 512 (b) 3 : 32 (c) 1 : 120 (d) None of these 
 
Solution  
The duplicate of ratio of 4 : 5 is  
  4
2 
: 5
2 
 = 16 : 25 
 
The triplicate ratio of 1 : 3 is  
 1
3 
: 3
3 
 = 1 : 27 
 
 
 
20 
Illustration 2- Continued 
21 
Page 5


Ratio and Proportion,  
Indices and Logarithm 
Paper 4: Quantitative Aptitude Chapter 1 
Part I: Ratio & Proportion 
 
Ms. Ritu Gupta, MA (Maths.) 
Illustration 1 
19 
Illustration 2 
The ratio compounded of duplicate ratio of 4:5, triplicate 
ratio of 1:3. sub duplicate ratio of 81:256 and sub triplicate 
ratio of 125:512 is 
(a) 4 : 512 (b) 3 : 32 (c) 1 : 120 (d) None of these 
 
Solution  
The duplicate of ratio of 4 : 5 is  
  4
2 
: 5
2 
 = 16 : 25 
 
The triplicate ratio of 1 : 3 is  
 1
3 
: 3
3 
 = 1 : 27 
 
 
 
20 
Illustration 2- Continued 
21 
Illustration 3 
22 
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