Re: [Pulze] La.i ca^n

[Nhat Quang Ton <nqt@minyos.its.rmit.edu.au>]

>  Cha`o ca'c anh chi., 

>   Nha^n tie^.n toa'n ddo^' ve^` ca^n, to^i cu~ng co' hai ba`i nho nho?,
> hy vo.ng la` mo^.t phu't gia?i tri'

> ==== 1 ====

>  Co' 100 kho ga.o, mo^~i kho 100 bao, mo^~i bao 100 kg, nhu*ng trong ddo'
> co' mo^.t kho bi. la^'y ma^'t mo^~i bao 1 kg (nghi~a la` co`n 99 kg)

>  Gia? su*? mi`nh co' mo^.t ca'i ca^n tha^.t lo*'n, co' the^? cho bie^'t
> tro.ng lu*o*.ng cu?a ba^'t ky` thu*' gi` du` la` na(.ng bao nhie^u

>  Ca^n mo^.t la^`n la`m sao xa'c ddi.nh ddu*o*.c kho na`o la` kho bi. ga(n
> gian.

O kho thu nhat lay 1 bao gao , kho thu hai hai bao , kho thu ba ba bao ...
kho thu mot tram lay mot tram bao ( So bao gao trung voi so thu tu cua bao
) Dat tat ca cac bao gao len can , so kg thieu hut chinh la so thu tu cua
kho gao thieu hut 


> ==== 2 ====

>  Co' mo^.t bao ga.o lo*'n 13 kg ga.o, mo^.t ca'i ca^n 2 ddi~a va` mo^.t
> qua? ca^n 1kg, ca^n 2 la^`n la`m sao dde^? la^'y ra 2,5 kg ga.o

Lan 1 : Co tong khoi luong la 14 can ( 13 can gao va qua can ) san bang
sang hai ben dia can ta se co 1 ben 7 can gao , va 1 ben 6 can gao
Lan 2 : dung 6 can gao co duoc va qua can san bang sang hai ben ta se co 1
ben 3.5 can gao ben kia la 2.5 can va qua can 

I have the following puzzle
                                          -----
                -----                    |     |
               |     |                   |     |
               |     |              -----       -----
          -----       -----        |                 |
         |                 |       |                 |
         |                 |        ------      -----
          -----       -----              |     |
               |     |                   |     |
               |     |                    -----
                -----  
Chi dung hai nhat cat cho hai hinh chu thap tren va ghep lai thanh duoc 1
hinh vuong

2) Chia goc 19 do thanh 19 phan bang nhau chi dung thuoc va compa

> Cheers