Question

Four black cows and three brown cows give as much milk in five days as three black cows and five brown cows give in four days. If a black cow gives 10 l of milk per day, what is the amount of milk (in litres) that a brown cow gives per day?

Answer 1

Step-by-step explanation:

In five days four black cows and 3 brown cows give as mush as milk that four brown cows and 5 black cows give in four days. Answer: The brown cow gives 0 liters of milk a day.