At the local model boat club, four friends were talking about their boats.
Alex didn't have a yellow boat.
Billie didn't have a red boat, but did have a green one.
One of the friends had a yellow boat, and a blue boat.
Another friend had a green boat, and a blue boat.
Charlie had a yellow boat.
Drew had a blue boat, but didn't have a green one.
There were a total of eight boats, two in each colour: red, green, blue, and yellow.
Each friend owned two boats, and no friend had two boats of the same colour.
Can you work out the correct colours?