The number of three digit numbers that can be formed with $1, 2, 4, 5, 6, 7$ so that any digit may be repeated is:

120

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6^{3}

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360

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720

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Solution

The correct option is B $6^{3}$
Each place can be filled with any of the 6 digits given in 6 ways
$∴$ Total number of ways $= 6^{3}$

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