40. Pete bought eight rice and cabbage buns and paid 1 ruble for them. Vasya bought nine buns and paid 1 ruble 1 kopek. How much does a rice bun cost, if it is known that it is more expensive than a cabbage bun and the buns cost more than 1 kopek?
82.40. Answer. A rice-filled bun costs 13 kopecks, while a cabbage-filled bun costs 9 or 11 kopecks.