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JEE MATHEMATICS MCQ: PERMUTATIONS

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The total number of numbers that are less than

3 \cdot 10^8

and can be formed using the digits

1,2,3

, is equal to

View answer and explanation

Correct option: C

\frac{1}{2}\left(7 \cdot 3^8-3\right)

Option C (

\frac{1}{2}\left(7 \cdot 3^8-3\right)

) is correct because it represents the total numbers that can be formed using the digits 1, 2, and 3, and are less than

3 \cdot 10^8

.

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