13.003. In two barrels, there are 70 liters of milk. If 12.5% of the milk from the first barrel is poured into the second barrel, then both barrels will have the same amount. How many liters of milk are in each barrel?
## Solution.

Let the initial amount of milk in the first bucket be $x$, and in the second bucket $70-x$ liters. After transferring, the first bucket has $x-0.125x=0.875x$ liters left, and the second bucket has $70-x+0.125x$ liters. According to the condition, $70-x+0.125x=0.875x$, from which $x=40$. There were 40 liters in the first bucket and 30 liters in the second bucket of milk.

Answer: 40 and 30 liters.