What must be added to the numbers 8, 14, 28 and 42 so that they are in

1.	What must be added to the numbers 8, 14, 28 and 42 so that they are in proportion?
A.	3
B.	7
C.	9
D.	8
E.	None of these
Answer» C. 9

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What must be added to the numbers 8, 14, 28 and 42 so that they are in proportion?

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