Question 475194
0,1,2,3,4

Choose the first digit 4 ways, as either 1,2,3,4 (1st digit can't be 0)
Coose the second digit any of 5 ways, as either 0,1,2,3,4
Chose the third digit any of 2 ways, either 1 or 3  (the only odd digits)

That's 4󬊂 = 40 ways

Edwin</pre>