Question 3
The beaver has a group of alien friends, shown below. Some eat only fish, while others eat only leaves.
The left group eats fish; the right group eats leaves.
Last week, the beaver went out to eat with some friends. The beaver must eat fish if none of the friends in the group eats leaves.
The four groups show Days 1, 2, 3 and 4, from left to right.
On how many of these four days must the beaver eat fish?
The left group eats fish; the right group eats leaves.
Last week, the beaver went out to eat with some friends. The beaver must eat fish if none of the friends in the group eats leaves.
The four groups show Days 1, 2, 3 and 4, from left to right.
On how many of these four days must the beaver eat fish?