Team 1
0
Team 2
0
Teams
Name
Score
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
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25
×
Suku ke-1 = 12, beda = â4. Tentukan suku ke-15.
U15 = 12 + (15-1)Ã(-4) = -44
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×
baam
Lose 10 points!
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×
gift
Win 10 points!
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×
fairy
Take points!
5
10
15
20
25
×
banana
Go to last place!
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20
×
Pola: 5, 15, 45, âĶ Tentukan suku ke-5.
Rasio 3, U5 = 5 Ã 3^4 = 5 Ã 81 = 405
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20
×
Suku pertama = 8, beda = 5. Tentukan suku ke-12.
U12 = 8 + (12-1)Ã5 = 8 + 55 = 63
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20
×
Jumlah 10 suku pertama dari pola: 4, 7, 10, 13, âĶ
U10 = 4 + (10-1)Ã3 = 31, S10 = (10/2) Ã (4 + 31) = 175
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25
×
Pola: 4, 12, 36, âĶ Berapa jumlah 6 suku pertama?
a=4, r=3, n=6, S6 = 4 Ã (3^6 - 1)/(3 - 1) = 1456
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25
×
Lapangan kursi: baris 1=20, baris 2=25, baris 3=30, âĶ hingga baris 15. Berapa jumlah semua kursi?
a=20, b=5, n=15, U15=90, S15 = (15/2) Ã (20 + 90) = 825
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20
×
Jumlah 5 suku pertama dari pola: 2, 6, 18, âĶ
a=2, r=3, n=5, S5 = 2 Ã (3^5 - 1)/(3 - 1) = 242
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10
×
Tentukan rasio pola ini: 2, 6, 18, 54, âĶ
Rasio = suku berikut ÷ suku sebelumnya = 6 ÷ 2 = 3
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25
×
Pola: 81, 27, 9, âĶ Tentukan suku ke-8.
Rasio = 1/3, U8 = 81 Ã (1/3)^7 = 1/27
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10
×
Baris 1 ada 3 kursi, baris 2 ada 6 kursi, baris 3 ada 9 kursi. Jika pola berlanjut, berapa kursi di baris ke-5?
Beda tetap 3, U5 = 3 + (5-1)Ã3 = 15
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banana
Go to last place!
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gold
Win 50 points!
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fairy
Take points!
5
10
15
20
25
×
lifesaver
Give 15 points!
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20
×
Susunan segitiga kecil: baris 1 = 1, baris 2 = 3, baris 3 = 6, baris 4 = 10. Berapa jumlah segitiga di baris ke-7?
Pola segitiga: Un = n(n+1)/2, U7 = 7Ã8/2 = 28
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25
×
Suku pertama = 15, beda = 7, berapa jumlah 20 suku pertama?
U20 = 15 + (20-1)Ã7 = 148, S20 = (20/2) Ã (15 + 148) = 1630
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trap
No points!
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star
Double points!
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gift
Win 25 points!
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×
baam
Lose 25 points!
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10
×
Diketahui pola barisan bilangan: 4, 7, 10, 13, âĶ Tentukan suku ke-6.
Beda tetap = 3, Un = a + (n-1)b â U6 = 4 + (6-1)Ã3 = 19
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