Answer:
60
Step-by-step explanation:
Find all multiples of three between 52 and less than 72:
54, 57, 60, 63, 66, 69.
Narrow it down by finding all even multiples of 3:
54, 60, 66
Now, multiply digits of each:
5x4 = 20 = No
6x0 = 0 = Yes
6x6 = 36 = No
The only possible one is 60.
Hope this helps and happy learning!