Question

List all the 4-digit odd numbers that can be created by rearranging these number tiles.
4 9 2 3

Answer 1

Step-by-step explanation:

total no. of digits without 3 is 2592. let us assume the number is "x x x y". where y is an odd digit but not 3, since every 3 has to be followed by a 6. hence y can be 1,5,7,9. also, 3 cannot fill into the third x because if it does so, then 6 cannot follow it.