Respuesta :
Answer:
On the 12th day.
Step-by-step explanation:
You have to find the the common multiples of 4 and 3.
The multiples for three are: 3, 6, 9, 12, 15 and more
The multiples for four are: 4, 8, 12, 16, 20 and more
The lowest number that is the same is 12. So the answer is 12.
Hope this helps!