CA Foundation P3 · Chapter 1 · Question 2 of 9
The duplicate ratio of 3 : 7 is:
Test yourself: pick an answer
Reveal answer & explanation
Correct answer: D) 9 : 49
Explanation
The duplicate ratio of a : b is a² : b². Hence the duplicate ratio of 3 : 7 is 3² : 7² = 9 : 49. √3 : √7 is the sub-duplicate ratio, 27 : 343 is the triplicate ratio and 7 : 3 is the inverse ratio.