Twenty-four solar terms draw mice.

On the first day, the mouse hit 1 foot, the mouse hit 1 foot, one ***2 feet, and there were 3 feet left;

The next day, the mouse hit two feet, and the mouse hit 1/2 feet. One day I hit 2.5 feet, two days I hit 4.5 feet, and there was 0.5 foot left.

On the third day, it is reasonable to say that the mouse hit 4 feet, and the mouse hit 1/4 feet. Now there is only 0.5 feet left, and it will definitely get through on the third day.

Now, let's assume that the big mouse hit x feet and the small mouse hit (0.5-X) feet.

The hole-making time is equal:

X÷4=(0.5-x)÷( 1/4)

X=8/ 17 for solving the equation.

So the mouse hit 8/ 17 feet on the third day.

The mouse hit 0.5-8/ 17= 1/34 feet.

So it usually takes three days: the mouse hit 3+8/ 17 feet.