Question 1209243
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(1) It is a 3 digit whole number
(2) It is divisible by 5
(3) It is a positive even number
(4) Each of its digits are different
(5) Its tens digit is greater than its ones digit
(6) Its hundreds digit is greater than its tens digit
(7) It is less than 400
(8) It is divisible by 3
(9) It has only one odd digit
(1)0 Its ten digit is 1
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From (2), the last digit is 5 or 0.


Then from (3), we conclude that the last digit is 0. 


From (10), the last two digits are 10.


From (6) and (7), first digit is 2 or 3.


From (8),  we conclude that first digit is 2.


The number is 210.    <U>ANSWER</U>
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Solved.


All other conditions, (4), (5), (9) are excessive: they are not used in the solution.