A tank contained 12 liters 250 ml of water. After Leon filled 18 jugs equally with water from the tank, there were 1.36 liters of water left in the tank. How much water was there in each jug? Give your answer in liters.

To determine how much water was there in each jug, we need to know the total amount of water left in the tank after filling the jugs and then divide it by the number of jugs.

We'll start by converting 12 liters 250 ml to liters. Since 1 liter is equal to 1000 ml, 250 ml is equal to 250/1000 = 0.25 liters.

So, the initial amount of water in the tank was 12 liters + 0.25 liters = <<12+0.25=12.25>>12.25 liters.

After filling the 18 jugs, there was 1.36 liters of water left in the tank.
Let's denote the amount of water in each jug as x.

The equation to calculate the remaining amount of water in the tank is:
12.25 liters - 18x liters = 1.36 liters.

Simplifying the equation, we get:
-18x = 1.36 - 12.25,
-18x = -10.89.

Now, let's divide both sides of the equation by -18:
x = -10.89 / -18,
x = 0.605 liters.

Therefore, there was approximately 0.605 liters of water in each jug.