2009年新加坡小学毕业考的数学题“极难”：家长学生叫苦不迭今天看到yahoo头条说几天前的2009年新加坡小学毕业考(俗称PSLE)的数学题“极难”，导致家长学生叫苦不迭。 我在网上找了一下今年的题目，发现的确是难，新加坡小学也是不教代数的，不可以设X。 大家有兴趣的话看看吧。这只是小学毕业考试，看来新加坡的孩子也是没有童年的那种。 这个是著名的被头条登出的Jim和Ken的问题。 Jim bought some chocolates and gave half of it to Ken. Ken bought some sweets and gave half of it to Jim. Jim ate 12 sweets and Ken ate 18 chocolates. The ratio of Jim's sweets to chocolates became 1:7 and the ratio of Ken's sweets to chocolates became 1:4. How many sweets did Ken buy?. Ans: 68 sweets 下面这个自行车的问题也难， Mei and Lin were in a bicycle race. Mei was travelling at a constant speed of 20km/hr and they both did not change their speed. When Lin completed half the race, Mei was 3.5km ahead. Mei completed the race at 10.45am. What time did Lin complete the race? Ans: 11.06am 下面几道题还算可以，但整个paper整体难度的确很高。 Sally baked s (more...)