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Helah Matematik [Selesai]

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Post time 25-9-2015 12:37 PM | Show all posts |Read mode
Edited by Eva_yy_Ellin at 28-9-2015 01:39 PM

Di sebuah kelas, seorang guru Matematik, Ms. Selma telah memberi 1 soalan.

Berikan hasil tambah 50 nombor ganjil yang pertama.
10 saat kemudian James menjawab, 2500.

Dalam hati Ms. Selma, tak apa, kamu bernasib baik saja.

Berikan hasil tambah 75 nombor ganjil yang pertama.
15 saat kemudian James menjawab, 5625.

Bagaimana James mendapat jawapan dengan tepat dan betul?
Tunjukkan formula asas kepada pengiraan yang dilakukan James.

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Post time 25-9-2015 12:56 PM | Show all posts


jumlah hasil tambah 50 no ganjil itu dibahagi dengan jumlah no ganjil (50)

2500/50 =50
5625/75 = 75


50  x  X = 2500
X = 2500/50
X = 50

75  x   X= 5625
X = 5625/75
X = 75
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 Author| Post time 25-9-2015 01:02 PM | Show all posts
Ipo replied at 25-9-2015 12:56 PM
jumlah hasil tambah 50 no ganjil itu dibahagi dengan jumlah no ganjil (50)

2500/50 =50

aqua nak formula in general
jwpn ipo tu betul, tp bukan tu yg dicari
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Post time 25-9-2015 01:09 PM | Show all posts
lavender_aqua replied at 25-9-2015 12:02 PM
aqua nak formula in general
jwpn ipo tu betul, tp bukan tu yg dicari

oh ya ke?
alrite...nanti ipo fikir lagi
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 Author| Post time 25-9-2015 01:20 PM | Show all posts
Ipo replied at 25-9-2015 01:09 PM
oh ya ke?
alrite...nanti ipo fikir lagi

ipo gantikan formula tu dgn huruf2, mcm
kita dok guna formula math yg general tu je

maksud formula general mcm ni


tp yg ni complicated, yg aqua nak tu senang ja
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Post time 25-9-2015 01:23 PM | Show all posts

              2
adakah X =Y

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 Author| Post time 25-9-2015 01:26 PM | Show all posts

yeah ni yg kita cari

James guna formula n x n, ataupun
mcm ipo bg tu, x^2=y utk jwb soalan
Ms Selma

@NaylaArisha  

@Eva_yy_Ellin

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Post time 25-9-2015 01:28 PM | Show all posts
lavender_aqua replied at 25-9-2015 12:26 PM
yeah ni yg kita cari

James guna formula n x n, ataupun

hahha...betul ke?
tadi nak jwap macam ni la mula2 tu..tapi mcm ringkas sgt

terima kasih daun keladi
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 Author| Post time 25-9-2015 01:33 PM | Show all posts
Ipo replied at 25-9-2015 01:28 PM
hahha...betul ke?
tadi nak jwap macam ni la mula2 tu..tapi mcm ringkas sgt

haha kita gostan ke belakang
selalu teka teki minta jawapan nombor je
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