If a:b=2:5, b:c=3:7 and c:d=1:3 find a:b:c:d? – McqOptions

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1.	If a:b=2:5, b:c=3:7 and c:d=1:3 find a:b:c:d?
A.	6:15:25:115
B.	6:15:35:115
C.	6:15:35:105
D.	None of these
Answer» D. None of these

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