Q&A - PSLE Math

[isetan]

MathIzzzFun:

kyp71:

[quote=\"kyp71\"]Please help anyone ?


The figures below is made up of a square, a quadrant and a semicircle. (take pie = 3.14)
(a) Find the perimeter of the shaded parts
(b) Find the difference in the area between the shaded parts.
http://i46.tinypic.com/1zxs7sj.jpg\">

Anyone can help me solve ?

Hi

I think you should be able to find the solution with this

http://i49.tinypic.com/344xv9g.png\">

note that such questions are actually same as \"age\" problems ie same gap/difference.

cheers.[/quote]Hi ,
Just attempt this question.....is the ans:-
For (a) 29.7
(b) 1.57

[Chan09]

http://i45.tinypic.com/2evthdd.jpg\"> help, tks

[tianzhu]

Chan09:

http://i45.tinypic.com/2evthdd.jpg\"> help, tks

Hi

Please refer to this similar question.

The answer to your question is 1/2.

Best wishes

http://farm7.staticflickr.com/6151/6191262010_71cc0ec1fd_z.jpg\">

[tianzhu]

isetan:

Hi ,
Just attempt this question.....is the ans:-
For (a) 29.7
(b) 1.57

Hi

We have the same answers.

Best wishes

[tamunawara]

hi can someone help me with this question


Andy had only $2 notes and Bryan had only $5 notes. the number of notes Andy had was 80% of Bryan’s notes. When Bryan gave Andy $550, the number of notes Andy had became thrice that of Bryan.

a)How many notes did Bryan have at first?
b) How much money did Andy have in the end?

[tianzhu]

tamunawara:

hi can someone help me with this question


Andy had only $2 notes and Bryan had only $5 notes. the number of notes Andy had was 80% of Bryan's notes. When Bryan gave Andy $550, the number of notes Andy had became thrice that of Bryan.

a)How many notes did Bryan have at first?
b) How much money did Andy have in the end?

Hi

Good Morning.

Please refer to speedmaths.com's solution.

Best wishes

[tamunawara]

thanks a million but i still have a doubt. Bryan has only $5 notes and therefore he can transfer only five dollar notes. the 550 he transfered should be 110 5 dollar notes. i am not clear about the second part of the solution.

[tianzhu]

tamunawara:

thanks a million but i still have a doubt. Bryan has only $5 notes and therefore he can transfer only five dollar notes. the 550 he transfered should be 110 5 dollar notes. i am not clear about the second part of the solution.

Hi

Please refer to speedmaths.com's solution.

Best wishes

[tamunawara]

hi


can you please send me the link to the site. I am unable to find it. Thanks a lot again

[kiasustar]

Hi anyone can help with this Qn?


A farmer has some chickens and ducks. If he sells 2 chickens and 3 ducks every day, there will be 50 chickens left when all the ducks have been sold. If he sells 3 chcikens and 2 ducks every day, there will be 25 chickens left when all the ducks have been sold.
a) how many ducks are there?
b) how many chickens are there ?


:udawoman: :udaman: :thankyou: