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How many 3-digit numbers do not have an even digit or a zero

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How many 3-digit numbers do not have an even digit or a zero [#permalink] New post 21 Apr 2018, 05:03
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Question Stats:

100% (02:17) correct 0% (00:00) wrong based on 4 sessions
How many 3-digit numbers do not have an even digit or a zero?

(A) 20
(B) 30
(C) 60
(D) 80
(E) 125
[Reveal] Spoiler: OA

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Re: How many 3-digit numbers do not have an even digit or a zero [#permalink] New post 24 Apr 2018, 01:50
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There are altogether \(10\) digits \({0,1,2,3,4,5,6,7,8,9}\) for a single place for any number
For three digit numbers there are altogether \(3\) places Since we cannot use \({0,2,4,6,8}\) the three digit number has
to be composed from \({1,3,5,7,9} = 5\) digits hence total number \(= 5*5*5 =125\)
option E
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Re: How many 3-digit numbers do not have an even digit or a zero   [#permalink] 24 Apr 2018, 01:50
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How many 3-digit numbers do not have an even digit or a zero

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