PSLE Maths 2012

[whywhy]

Hi Crimsonsunset

can u show the table method to do that killer 2009 question? thank u.

[whywhy]

one group MwwwMwww

13 groups x 8 = 104 people
+ another MwwwMw = 110 people
13 groups x 2 men = 26 men
26 + 2 = 28 men.
hope tis is correct.

[whywhy]

one group MwwwMwww

13 groups x 8 = 104 people
+ another MwwwMw = 110 people
13 groups x 2 men = 26 men
26 + 2 = 28 men.
hope tis is correct.

[CrimsonSunset]

@whywhy

e.g. Jim bought some chocolates and gave half to Ken. Ken bought some sweets and gave half to Jim. When Jim ate 12 sweets while Ken ate 18 chocolates, the ratio of Jim’s number of sweet to number of chocolate is 1: 7 while the ratio of Ken’s number of sweets to number of chocolate is 1: 4. How many sweets did Ken buy?


Let 1c be half the number of chocolates that Jim bought and 1s be half the number of sweets Ken bought.

Jim\t
Ratio of Choco:Sweets (At first)
1c : 1s\t
(At first)
1c : 1s
1c : 1s - 12
7 : 1 (In the end)

Ken
Ratio of Choco:Sweets \t
1c – 18 : 1s
4 : 1 (In the end)

Cross Multiply:
1c = 7s – 84

1c – 18 = 4s
-> 7s – 84 – 18 = 4s (Substitution)
-> 3s = 102
102/3 * 2= 68


Sorry, this is not as neat/simplistic as the real table mthod, but u get the idea.

[shengp]

Jankhan:

Im from the best class and yet there are some who left the quetions blank!

mine too! even the top scorer said that it was a tricky paper
:faint: :faint: :faint:

[weatherbee]

I heard that paper 1 is easy but paper 2 is difficult.

[whywhy]

thanks crimsonsunset. need time to work it out.

[angatheart]

Happy new year!


I know the PSLE 2012 dust has settled and now it is 2013.

Can anyone tell me what the speed question for PSLE 2012 is and what question 17 is? Maybe PM me?

Thanx.

[Spot-The-Catfish]

Can someone answer this question?


7 ____ 7 ____2 ___ 7 = 5

Fill in blanks with +, -, x or /.

7+7-2-7

[8371_you]

Im taking my PSLE this year, just did the 2012 paper for math and i agree it was rlly easy… too easy. I hope SEAB standard won’t drop too much, otherwise they won’t be able to differentiate the smarter and not so smart people in the exam.