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

## 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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