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selesaikan 2 [Selesai]

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Post time 22-10-2013 04:10 PM | Show all posts |Read mode
Alex, Muthu dan Atan jalan2 kat shopping mall. sampai la diorang jumpa mesin penimbang.
Alex ajak Muthu dan Atan timbang berat diorang.
memandangkan diorang bertiga agak kedekut, Atan cadangkan diorang timbang brsama2 tanpa turun dari mesin penimbang.
Masalahnya mesin penimbang tu hanya boleh tampung 2 org pada satu2 masa.
jadi
Alex timbang bersama Muthu dan berat mereka ialah 85 kg
Muthu turun digantikan Atan dan berat terus turun kepada 75kg
kemudian Muthu naik menggantikan Alex dan berat turun lagi kepada 60 kg

kesudahannya Alex, Muthu dan Atan buntu memikirkan berapa berat mereka
soalanya berapa jumlah berat mereka.
jom bantu selesaikan

@Eva_yy_Ellin  ai pinjam Alex u oke

Last edited by Eva_yy_Ellin on 23-10-2013 12:42 PM

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Post time 22-10-2013 04:13 PM | Show all posts
Jangan lupa pulangkan balik

tunggu orang lain kirakan.
tak boleh nak main nombor petang-petang ni...
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 Author| Post time 22-10-2013 04:15 PM | Show all posts
Eva_yy_Ellin posted on 22-10-2013 04:13 PM
Jangan lupa pulangkan balik

tunggu orang lain kirakan.

tu pun kalau alex jumpa jalan pulang
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Post time 22-10-2013 04:19 PM | Show all posts
Alex - 45kg
Mutu - 40kg
Atan - 30kg
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 Author| Post time 22-10-2013 04:21 PM | Show all posts
Farini posted on 22-10-2013 04:19 PM
Alex - 45kg
Mutu - 40kg
Atan - 30kg

teeeeeeeeeetttt..cuba kira balik yer..
btw..utk soklan math baik bagi jalan kiraan..nanti dapat extra tacang
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Post time 22-10-2013 04:26 PM | Show all posts
alisyadania posted on 22-10-2013 04:21 PM
teeeeeeeeeetttt..cuba kira balik yer..
btw..utk soklan math baik bagi jalan kiraan..nanti dapat e ...

Alex + Mutu = 85kg
Alex + Atan = 75kg..... Atan kurang 10kg dari Mutu
Atan + Mutu = 60kg....
Alex - 45kg
Mutu - 40kg
Atan - 20kg
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Post time 22-10-2013 04:30 PM | Show all posts
aku silap lagi la...
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 Author| Post time 22-10-2013 04:47 PM | Show all posts
Farini posted on 22-10-2013 04:30 PM
aku silap lagi la...

teeetttttttttttttttttttt

xpa..matematik ni seronok
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Post time 22-10-2013 05:32 PM | Show all posts
x=Alex
y=Muthu
z=atan

x+y=85
x+z=75
z+y=60

y=85-x
also
y=60-z

Thus,

60-z = 85-x
z=x-25

So,

x+(x-25) = 75
x=50

50+y=85
y=35

z+35=60
z=25

JAdiiiiiiiiiiiiiiiiiii;

x=Alex = 50kg
y=Muthu = 35kg
z=Atan = 25kg


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Post time 22-10-2013 05:57 PM | Show all posts
Alex = 80
Mutu = 72.5
Atan = 67.5

cek hentam saja...
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Post time 22-10-2013 11:16 PM | Show all posts
ahazman24 posted on 22-10-2013 05:32 PM
x=Alex
y=Muthu
z=atan

I like this equation
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Post time 23-10-2013 08:49 AM | Show all posts
ahazman24 posted on 22-10-2013 05:32 PM
x=Alex
y=Muthu
z=atan

pergh tbaek la.. saya kunci jawapan ini
walopun x kire jwpn nye betul ke x.. betul le kut sbb dah pjg sgt mcm tu
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 Author| Post time 23-10-2013 09:14 AM | Show all posts
ahazman24 posted on 22-10-2013 05:32 PM
x=Alex
y=Muthu
z=atan

sikit lagi dah
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 Author| Post time 23-10-2013 09:14 AM | Show all posts
mizmini posted on 22-10-2013 05:57 PM
Alex = 80
Mutu = 72.5
Atan = 67.5

xmo hentam2..meh kira2
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 Author| Post time 23-10-2013 09:15 AM | Show all posts
k_rul posted on 22-10-2013 11:16 PM
I like this equation

jangan like dulu..x tahu betul ke salah
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 Author| Post time 23-10-2013 09:15 AM | Show all posts
Spiral posted on 23-10-2013 08:49 AM
pergh tbaek la.. saya kunci jawapan ini
walopun x kire jwpn nye betul ke x.. betul le kut  ...

ai pulangkan kunci bukak balik ye
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Post time 23-10-2013 09:44 AM | Show all posts
Atan =A
Muthu = B
Atan = C

Cara :
A+B = 85
so B=85-A
A+C=75
& C=75-A

kita tau
B+C=60
so
(85-A) + (75-A)=60
160-2A=60
2A=100
A=50

A+B = 85
so B=85-50=35
A+C=75
& C=75-50=25

jawapan
A=50
B=35
C=25



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 Author| Post time 23-10-2013 09:55 AM | Show all posts
MissMamamia75 posted on 23-10-2013 09:44 AM
Atan =A
Muthu = B
Atan = C

sikit ja lagi nak betul
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Post time 23-10-2013 10:00 AM | Show all posts
Alex = x , Muthu = y , Atan = z

1. x + y = 85
2. x + z = 75
3. z + y = 60

x = 85 - y
z = 75 - x
y = 60 - z

Cara:
x = 85 - y
x = 85 - (60 - z) --->gantikan y
x = 85 - (60 - (75 - x)) --->gantikan z
x = 85 - (60 - 75 + x)
x = 85 - 60 + 75 - x
x = 100 - x
x + x = 100
2x = 100
x = 100/2
x = 50

z = 75 - x
z = 75 - 50 --->gantikan x dengan jwpn diatas
z = 25

y = 60 - z
y = 60 - 25 --->gantikan z dengan jwpn diatas
y = 35

So:
Alex = x = 50
Muthu = y = 35
Atan = z = 25

Jumlah berat = Alex + Muthu + Atan
Jumlat berat = 50 + 35 + 25
Jumlah berat = 110

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Post time 23-10-2013 10:01 AM | Show all posts
Alex 50
Muthu 35
Atan 25
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