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The Writer
 PeiZhen Legal 23 27/12/87 NTU-Accountancy Now Playing
  Music Playlist at MixPod.com I believed when the clock struck 12 I would still remain gracefully posed in the centre of the ballroom . I believed the prince would take my hand and tell me he has chosen me . I believed it wasnt just a fantasy.. I guess I was delusional in the face of something so perfect ? because the dress turned back to rags my long hair fell down back to my shoulders with all the jewels gone.
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Monday, October 12, 2009 10:37 PM Today work is a little bit different! All of us have been trying to solve this little problematic sum tat appears to be the killer qns for dis yr PSLE Maths. n indeed it was tough! I am sure I will have left it blank when I am sitting in the examination hall 10yrs ago. 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?" But still, we managed to come up with a solution, not sure after how long... Let the number of chocolates be X and the number of sweets be Y. X/2-18=4Y/2---------------(1) X-36=4Y--------------------(1.1) 7(Y/2-12)=X/2-------------(2) 7Y-168=X---------------------(2.2) Therefore, substituting 2.2 into 1.1 7Y-168-36=4Y 3Y=204 Y=68 ( Ans: Ken bought 68 sweets! ) Substituting Y=68 into 1.1 X-36=4 x 68 = 272 X= 308 This is totally crazy, I remember I learnt simultaneous equation only when I am in Sec 2, maybe? And when I am still a PSLE candidate 10 years ago, I believe i will have tried attempting dis qns using models! Of crse to us, this qns seems chicken feet using algebras but den, how would we hav even tot of solving dis using algebras back den, unless we are born to be a Maths genius. Poor students. Thank goodness I have overcome it. But no matter wat, i somehow enjoy and miss solving problem sums. Bring me back to 10 years ago. 真。心话 |