If sum of \[n\] terms of an A.P. is \[3{{n}^{2}}+5n\] and \[{{T}_{m}}=164\] then \[m=\] [RPET 1991, 95; DCE 1999]

If sum of \[n\] terms of an A.P. is \[3{{n}^{2}}+5n\] and \[{{T}_{m}}=

1.	If sum of \[n\] terms of an A.P. is \[3{{n}^{2}}+5n\] and \[{{T}_{m}}=164\] then \[m=\] [RPET 1991, 95; DCE 1999]
A.	26
B.	27
C.	28
D.	None of these
Answer» C. 28

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If sum of \[n\] terms of an A.P. is \[3{{n}^{2}}+5n\] and \[{{T}_{m}}=164\] then \[m=\] [RPET 1991, 95; DCE 1999]

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