singapore primary 6 exam.....

last nite had notice a math ques in my fb fren de status post, about jimmy and kenny tat buy sweet and chocolate de.... i gt the ans as 68 and it took me around 3 minute....

2day, when i look bek yesterday newspaper, i just realise it is actually a exam question for singapore primary 6 student, wat the hell would this be??? i checked in the pmr 2006 reference book, such question which involve linear equation whit 2 unknown variable (x & y commonly) and need to be solve tru the method of semutanious equation is being teach in form3, chapter 11, hw can u espect a primary student to solve this?? honestly, if i were a p6 student facing such ques, i m sure i CANNOT solve it in time.....

below is the news frm sinchew daily newsppr and my solution fr the ques, u think p6 student can do???