Answers

2014-09-22T13:02:43+05:30
Duplicate of 4:5 = 16/25
tripicate of 1:3  = 1/27
sub duplicate of 81:256 =9/16
sub triplicate of 125:512 =5/8

now mulitipliy (16*1*9*5) :(25*27*16*8)

=1/120
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2014-09-22T22:09:29+05:30
Dupicate ratio of 4:5=16:25
triplicate ratio of 1:3=1:27
sub-duplicate ratio of 81:256=9:16
sub-triplicate ratio of 125:512=5:8
compounded ratio=720:86400
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