新西兰辅导中小学数学
在新西兰
国内重点大学老师,奥大硕士,澳洲讲师,在美国获奖。辅导中小学数学。在提高成绩同时,培养学生对学科的兴趣,开发相应的潜力。避免高分低能现象。
Would you like to try the following problem?
Question: 10 boxes each contains 10 pinpongs. All the pingpongs weight 4 gramms each, except 1 box in which the pingpongs weight 3 gramms each. Weight one time to determine which box contains the 3 gramms pingpong.
Can you solve it in 10 mins?
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