Answers

2014-09-22T12:18:18+05:30

given compounded ratio =4/9
duplicate ratio =(3/4)^2 =3^2/4^2 = 9/16
= 4*9/9*16
= 36/144
=1/4 (or 1:4)
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Options a) 1:4 b) 1:3 c)3:1 and d) none of these
so answer is a) 1:4