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Win 5 liters and 6 math answers in summer vacation
1, assuming that the total score of all pairs is * *:10×15 =150 (minutes).

If 1 is out of orbit, the score is less than150:10+4 =14 (minutes).

If there are 1 answers, you will get 10 less than 150.

Total * * * minus: 150-88 = 62 (points)

62 points can be divided into three 14 points and two 10 points.

That is 3× 14+2× 10 = 62 (point).

So I didn't answer 2 questions, 3 questions were wrong, 10 questions were right. You can check the answer.

10× 10-3×4=88 (point)

Do you understand?

2, without the speed sum of two people, there is no solution.