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The sub-duplicate ratio of 1:4 is?

Question 1:

The sub-duplicate ratio of 1:4 is?

A. 1:2

Feedback √1 : √4 = 1:2.

B. 2:1

C. 1:4

D. 1:3

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Practice ration and propotions Online Test 1 | Englishfreetest.com

20 minutes
10 questions