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The number of 5 digited numbers which are not divisible by 5 and which consist of different odd digits is

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120

answer is A.

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Detailed Solution

consider 5 places.

No. of 5 digit numbers formed using 1, 3, 5, 7, 9=5!

No. of 5 digit numbers using 1, 3, 5, 7, 9 with 5 in last place.

=remaining 4 places can be arranged in 4! ways.

∴ No of 5 digit numbers not divisible by 5

$= 5! - 4! = 120 - 24 = 96$

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