Question 6
Ada the beaver has marbles with the following features:
- Size: small, medium or large.
- Color: red, blue or yellow.
- Material: stone, glass or metal.
- Decoration: plain, striped or dotted.
Ada knows that the marble features obey these rules:
- Each marble has exactly one size, one color, one material and one decoration.
- Metal marbles are not large.
- Stone marbles cannot be red or yellow.
- Striped decoration cannot be used for stone or metal marbles.
- Dotted decoration cannot be used for metal marbles.
Ada has a large blue marble. What material is it made of?
- Size: small, medium or large.
- Color: red, blue or yellow.
- Material: stone, glass or metal.
- Decoration: plain, striped or dotted.
Ada knows that the marble features obey these rules:
- Each marble has exactly one size, one color, one material and one decoration.
- Metal marbles are not large.
- Stone marbles cannot be red or yellow.
- Striped decoration cannot be used for stone or metal marbles.
- Dotted decoration cannot be used for metal marbles.
Ada has a large blue marble. What material is it made of?