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#1 2015-07-25 23:53:26
- aria
- Guest
arithmetic
How to solve this?
How many integers between 100 and 1000 contain only the digits 3,4,5 ;if any digit may be repeated?
#2 2015-07-26 06:52:52
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: arithmetic
Can any digit be left out?
Example: is 344 one answer?
In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.
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