Rasio barisan geometri sebesar 2 dan suku ke-8 adalah 384, maka suku ke-5 adalah...
BARISAN GEOMETRI

Quiz
•
Education
•
11th Grade
•
Hard
gezadwiputri gezadwiputri
FREE Resource
5 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
A. 40
B. 48
C. 56
D. 61
E. 72
2.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Diketahui sebuah barisan geometri 3, 6, 12....maka suku ketujuh dari barisan geometri tersebut ...
A. 128
B. 192
C. 64
D. 190
E. 45
3.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
Pertumbuhan bakteri mengikuti pola barisan geometri. Setiap satu detik bakteri berkembang biak menjadi 2 kali lipat dari jumlah bakteri sebelumnya. Jika pada saat permulaan terdapat 5 bakteri, maka jumlah bakteri berkembang menjadi 320 bakteri setelah ....
A. 6 DETIK
B. 8 DETIK
C. 9 DETIK
D. 11 DETIK
E. 15 DETIK
4.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Diketahui sebuah barisan geometri : 3, 9, 27, 81, 243. Berapakah rasio barisan geometri tersebut ...
A. 2
B. 3
C. 4
D. 6
E. 9
5.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
Seutas tali dipotong menjadi 4 bagian, masing-masing membentuk barisan geometri. Jika potongan tali terpendek adalah 2 cm dan potongan tali terpanjang adalah 54 cm, panjang tali semula adalah ⋯ cm.
A. 60
B. 70
C. 80
D. 90
E. 100
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