If a - b : b - c : c - d = 1 : 2 : 3, then what is the value of (a + d – McqOptions

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1.	If a - b : b - c : c - d = 1 : 2 : 3, then what is the value of (a + d) : c ?
A.	1 : 2
B.	2 : 1
C.	4 : 1
D.	3 : 1
Answer» C. 4 : 1

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