The \[{{20}^{th}}\] term of the series \[2\times 4+4\times 6+6\times 8+.......\]will be [Pb. CET 1988]

The \[{{20}^{th}}\] term of the series \[2\times 4+4\times 6+6\times 8

1.	The \[{{20}^{th}}\] term of the series \[2\times 4+4\times 6+6\times 8+.......\]will be [Pb. CET 1988]
A.	1600
B.	1680
C.	420
D.	840
Answer» C. 420

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The \[{{20}^{th}}\] term of the series \[2\times 4+4\times 6+6\times 8+.......\]will be [Pb. CET 1988]

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