The fourth term of an A.P. is three times of the first term and the seventh term exceeds the twice of the third term by one, then the common difference of the progression is

The fourth term of an A.P. is three times of the first term and the se

1.	The fourth term of an A.P. is three times of the first term and the seventh term exceeds the twice of the third term by one, then the common difference of the progression is
A.	2
B.	3
C.	\[\frac{3}{2}\]
D.	-1
Answer» B. 3

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The fourth term of an A.P. is three times of the first term and the seventh term exceeds the twice of the third term by one, then the common difference of the progression is

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