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Total number of 6-digit numbers in which...

Total number of 6-digit numbers in which all the odd digits appear, is

Text Solution

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Among the digits 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, clearly 1, 3, 5, 7 and 9 are odd.
`therefore` Number of six-digit numbers `= 5 xx 5 xx 5 xx 5 xx 5 xx 5 = 5^(6)`
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