Posted by Aubrey on Thursday, October 3, 2013 at 8:00pm.
The tens digit is a multiple of 5
The hundreds digit is 1 less than the tens digit
The ones digit is less than the hundreds digit
The sum of the digits is a multiple of 6
What is the mystery number??

Math  Ms. Sue, Thursday, October 3, 2013 at 8:03pm
_ _ _
Tens digit:
_ 5 _
Hundreds digit:
4 5 _
Ones digit must be 0, 1, 2, or 3
4 5 ?
Take it from there.

Math  Maths girl, Tuesday, September 15, 2015 at 8:08am
453
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