Very experienced Chinese and Maths tutor in Woodlands and Admiralty

Tel: 81231268

MOE Hater:

James Ang:

Who in P6 this year can solve this 2009 PSLE Maths (5 marks) question? (*Page 72, Q16 in the new PSLE Maths 5 year series.)


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?. (PSLE 2009, 5 marks)

The model methoid is a pain. just use ratio and basic algebra and there u hv it. I was in P6 last year and i solved that question in 4 minutes munching on popcorn. Most of my friends cud do it too. dun understand the fuss over the question :roll:

Yes, precisely. Using ratio to solve this question is an ideal way. Model mothod is a main method in Primary Maths, but not suitable for all word problems. Ratio is also a good idea to solve difficult word problems with percentage involved.