Peasant Marian wants to buy new chickens, pigs, and horses. A new chicken costs 50 eurocents, a pig 3 euros, and a horse 10 euros. Peasant Marian has 100 euros with which she wants to buy exactly 100 animals, but in such a way, that she has at least one of each kind of animal.

The question: How many animals must peasant Marian buy of each kind?

The answer: Click here!

Another question: A horse is worth as much as two bulls and one sheep.
A bull is worth as much as two cows.
Two cows are worth as much as five donkeys.
A donkey is worth as much as four sheep.
How many sheep is a horse worth?

Another answer: Click here!

Yet another question: Farmer Axel has bought new cows and chickens. Together, the animals have 25 heads and 72 legs. How many cows and chickens did farmer Axel buy?

Yet another answer: Click here!

The fourth question: Peasant Anya has horses, cows, and sheep in her stable. We know the following:

• except four, all are horses;
• except four, all are cows;
• except four, all are sheep.

How many animals of each kind does peasant Anya have in her stable?

The fourth answer: Click here!