Course: CA Foundation; Topic: Ratio
Learning Objective:
How to find sub-duplicate ratio?
Concept:
The sub-duplicate ratio of a : b is √a : √b
Exercise 1A, Question 6, CA Foundaton Study Material
Question: The sub-duplicate ratio of 25 : 36 is …?
𝐎𝐩𝐭𝐢𝐨𝐧 (𝐀) : 6 : 5
𝐎𝐩𝐭𝐢𝐨𝐧 (𝐁) : 36 : 25
𝐎𝐩𝐭𝐢𝐨𝐧 (𝐂) : 50 : 72
𝐎𝐩𝐭𝐢𝐨𝐧 (𝐃) : 5 : 6
Solution Video:
Exercise 1A, Question 11, CA Foundaton Study Material
Question: The ratio compounded of duplicate ratio of 4 : 5, triplicate ratio of 1 : 3, sub duplicate ratio of 81 : 256 and ….
𝐎𝐩𝐭𝐢𝐨𝐧 (𝐀) : 4 : 512
𝐎𝐩𝐭𝐢𝐨𝐧 (𝐁) : 3 : 32
𝐎𝐩𝐭𝐢𝐨𝐧 (𝐂) : 1 : 12
𝐎𝐩𝐭𝐢𝐨𝐧 (𝐃) : None of these
Solution Video:
Exercise 1A, Question 20, CA Foundaton Study Material
Question: If p : q is the sub-duplicate ratio of p - x² : q - x² then x² is …?
𝐎𝐩𝐭𝐢𝐨𝐧 (𝐀) : p / p + q
𝐎𝐩𝐭𝐢𝐨𝐧 (𝐁) : q / p + q
𝐎𝐩𝐭𝐢𝐨𝐧 (𝐂) : pq / p + q
𝐎𝐩𝐭𝐢𝐨𝐧 (𝐃) : None of these