Several gnomes, loading their luggage onto a pony, set off on a long journey. They were spotted by trolls, who counted 36 legs and 15 heads in the caravan. How many gnomes and how many ponies were there?

#
There were 15 creatures in the caravan. If all of them were gnomes, they would have $15 \cdot 2=30$ legs; but in reality, there are 6 more legs, which means there were $6:(4-2)=3$ ponies and $15-3=12$ gnomes.

## Answer

12 gnomes and 3 ponies.