Question 1: (1)2

(2)4

Question 2: Answer: Because 5 1 is divided by 10+5, the remainder is 1, 5+ 1 = 6 balls, so a child throws at least 6 balls.

Question 3: Answer: Because 3 1 is divided by 30= 1, the remainder is 1, and each student is 1+ 1=2 (pieces), so at least two students have birthdays on the same day.

Question 4: Because 37 has more than 12+ 13, the remainder is 1, and everyone has 3+ 1 = 4 people, so at least 4 people have the same attributes.

Question 5: Because 547 is divided by 6=9 1 and the remainder is 1, 9 1+ 1 = 92, at least one student has a score of not less than 92.

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