If A:B=2:3,B:C=5:7and C:D=3:10, then what is A : D equal to? – McqOptions

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1.	If A:B=2:3,B:C=5:7and C:D=3:10, then what is A : D equal to?
A.	1 : 7
B.	5 : 1
C.	2 : 7
D.	1
Answer» B. 5 : 1

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