Below (after the reminder) is the answer to the Problem 3 of the lesson Some logic problems (the topic Miscellaneous word problems
of the section Word problems in this site).
Problem 3 formulation (reminder)
Seven dwarfs decided that each of them will give a gift of at least 7 flowers to Snow White for her birthday.
When all the flowers were presented, Snow White said that the total number of the flowers is not more than 50.
When the smallest dwarf heard it, he said immediately, that he can identify exactly the number of flowers presented by each dwarf.
What is the number of flowers presented by each dwarf?
The smallest dwarf gave a gift of 8 flowers.
The rest of six dwarfs gave a gift of 7 flowers each.