Q&A - PSLE Math

[bobsg01]

Thank you atutor2001 for the explaination and solution.

[MathIzzzFun]

alrama:

Kailing and jim had a total of $63. Kailing gave 0.3 of her share to jim. Jim then gave 1/3 of the total amount of money he had to his brother. In the end, all the three children had the same amount of money. How much money did kailing have at first? ans:36. Can anyone explain?

Hi

hope this helps

http://www.flickr.com/photos/62167097@N02/6020796670/in/photostream/

cheers.

[htn]

Need help

Nuryn and Liyana bought some clips and ribbons. Liyana bought 40% of the total number of clips and ribbons. Altogether, they bought 30 more ribbons than clips.
Nuryn bought 2/3 of the ribbons and 50% of the clips.
What was the total number of clips and ribbons that Liyana bought?


Btw does anyone have St Hillda 2010 preliminary paper , i need help for q 17,
Tia

[MathIzzzFun]

htn:

Need help

Nuryn and Liyana bought some clips and ribbons. Liyana bought 40% of the total number of clips and ribbons. Altogether, they bought 30 more ribbons than clips.
Nuryn bought 2/3 of the ribbons and 50% of the clips.
What was the total number of clips and ribbons that Liyana bought?


Btw does anyone have St Hillda 2010 preliminary paper , i need help for q 17,
Tia

Hi

Liyana = [50% Clips][1/3 ribbons] = 40% of total
Nuryn = [50% Clips][1/3 ribbons][1/3 ribbons] = 60% of total
So, [1/3 ribbons] = 20% of total = 30
100% = 5 x 30 = 150
40% = 2 x 30 = 60

Liyana bought a total of 60 ribbons and clips.

cheers.

[bobsg01]

Need help to find Angle a, b, d, e


Thanks in advance for your help.

http://i55.tinypic.com/oa645d.jpg\">

[pensiveowl]

Hi, could someone pls help us work this out:


http://www.positivelyquit.org/images/q17.jpg\">

Thanks

[IMTRYINGSTUFF]

bobsg01:

Need help to find Angle a, b, d, e


Thanks in advance for your help.

http://i55.tinypic.com/oa645d.jpg\">

Is is 239˚???

180-65(big triangle)=115˚(a and b)
180-56(DFC)=124˚(e and d)
124+115=239˚(a and b and d and e)

[atutor2001]

deleted

[atutor2001]

pensiveowl:

Hi, could someone pls help us work this out:


http://www.positivelyquit.org/images/q17.jpg\">

Thanks

Not sure if my mind is still working as it appears to be very tedious to get the shaded area if area A is not given.

Finding area A alone is a nightmare to me. I would need to use Pythagoras theorem just to find area A. Hope some math guru can come out with an easy solution

[Andrew Lee]

http://i52.tinypic.com/nmzzep.jpg\"> :frustrated: