Question 6
Each beaver arranges seven white or gray bottles from left to right, following these rules:
- The third bottle must be gray.
- If a gray bottle is placed, all bottles after it must also be gray, if any.
Their arrangements are shown.
Which beavers did not follow the rules?
Editorial note: the printed choices do not provide a complete answer under the literal rules. Automatic grading is disabled; see the explanation.
- The third bottle must be gray.
- If a gray bottle is placed, all bottles after it must also be gray, if any.
Their arrangements are shown.
Which beavers did not follow the rules?
Editorial note: the printed choices do not provide a complete answer under the literal rules. Automatic grading is disabled; see the explanation.