Total number less than 3 x \[{{10}^{8}}\] and can be formed using the digits 1,2,3 is equal to

\[\frac{1}{2}({{3}^{9}}-3+{{3}^{8}})\]

\[\frac{1}{2}({{3}^{9}}+4\times {{3}^{8}})\]

\[\frac{1}{2}(7\times {{3}^{8}}-3)\]

Total number less than 3 x \[{{10}^{8}}\] and can be formed using the

1.	Total number less than 3 x \[{{10}^{8}}\] and can be formed using the digits 1,2,3 is equal to
A.	\[\frac{1}{2}({{3}^{9}}+4\times {{3}^{8}})\]
B.	\[\frac{1}{2}({{3}^{9}}-3)\]
C.	\[\frac{1}{2}(7\times {{3}^{8}}-3)\]
D.	\[\frac{1}{2}({{3}^{9}}-3+{{3}^{8}})\]
Answer» D. \[\frac{1}{2}({{3}^{9}}-3+{{3}^{8}})\]

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Total number less than 3 x \[{{10}^{8}}\] and can be formed using the digits 1,2,3 is equal to

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