AMC 8 2008 Problem 15

AMC8 2008 年第 15

余数与同余★★★☆☆
In Theresa's first 8 basketball games, she scored 7, 4, 3, 6, 8, 3, 1 and 5 points. In her ninth game, she scored fewer than 10 points and her points-per-game average for the nine games was an integer. Similarly in her tenth game, she scored fewer than 10 points and her points-per-game average for the 10 games was also an integer. What is the product of the number of points she scored in the ninth and tenth games?
在 Theresa 的前 8 场篮球比赛中,她的进球得分分别是 7,4,3,6,8,3,1 和 5 分。在她的第 9 场比赛中,她的得分少于 10 分,而她在这 9 场比赛中平均每场得分都是整数。同样,在她的第 10 场比赛中,她的得分少于 10 分,而她在这 10 场比赛中平均每场得分也都是整数。 那么她在第 9 场和第 10 场比赛中的得分的乘积是多少?
  1. A.35
  2. B.40
  3. C.48
  4. D.56
  5. E.72

正确答案 · Correct Answer

B

解析 · Solution

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