Puzzles and logic › Logic puzzles › Assorted puzzles
Blasting an asteroid into pieces
Elementary school · ●○○○○ 10 pts
Bruce the Astronaut must destroy a large asteroid. When he blasts a large asteroid, it splits into two medium asteroids. When he blasts a medium asteroid, it splits into three small asteroids. When he blasts a small asteroid, it vanishes. How many blasts does he need to make the asteroid completely vanish?