-
54, 27, 9, 5, 30, 15, 5, …
A. -7
B. 1
C. 7
D. 9
E. 30
PEMBAHASAN :
u1 = 54
u2 = u1 : 2 = 54 : 2 = 27
u3 = u2 : 3 = 27 : 3 = 9
u4 = u3 – 4 = 9 – 4 = 5
u5 = 30
u6 = u5 : 2 = 30 : 2 = 15
u7 = u6 : 3 = 15 : 3 = 5
u8 = u7 – 4 = 5 – 4 = 1
JAWABAN : B
-
4, 4 20, 4, 3, 3, 15, …
A. 1
B. 3
C. 5
D. 10
E. 25
PEMBAHASAN :
u1 = u2 = 4
u3 = 20
u4 = u3 : 5 = 4
u5 = u6 = 3
u7 = 15
u8 = u7 : 5 = 3
JAWABAN : B
-
4, 9, …, 39, 79, 159, 319, 639, 1279
A. 17
B. 19
C. 20
D. 29
E. 30
PEMBAHASAN :
u1 = 4
u2 = 2u1 + 1 = 2.4 + 1 = 9
u3 = 2u2 + 1 = 2.9 + 1 = 19
u4 = 2u3 + 1 = 2.19 + 1 = 39
u5 = 2u4 + 1 = 2.39 + 1 = 79
u6 = 2u5 + 1 = 2.79 + 1 = 159
u7 = 2u6 + 1 = 2.159 + 1 = 319
u8 = 2u7 + 1 = 2.319 + 1 = 639
u9 = 2u8 + 1 = 2.639 + 1 = 1279
JAWABAN : B
-
3, 4, 6, …, …, 16, 24, 32, 48
A. 4 dan 10
B. 8 dan 14
C. 8 dan 12
D. 9 dan 13
E. 9 dan 18
PEMBAHASAN :
u1 = 3
u3 = 2u1 = 2.3 = 6
u5 = 2u3 = 2.6 = 12
u7 = 2u5 = 2.12 = 24
u9 = 2u7 = 2.24 = 48
u2 = 4
u4 = 2u2 = 2.4 = 8
u6 = 2u4 = 2.8 = 16
u8 = 2u6 = 2.16
= 32
JAWABAN : C
-
4, 6, …, …, 12, 16, 16, 24, 32
A. 5 dan 17
B. 7 dan 8
C. 8 dan 9
D. 8 dan 8
E. 9 dan 9
PEMBAHASAN :
u1 = 4
u4 = u1 x 2 = 4 x 2 = 8
u6 = u4 x 2 = 8 x 2 = 16
u9 = u6 x 2 = 16 x 2 = 32
u2 = 6
u5 = u2 x 2 = 6 x 2 = 12
u8 = u5 x 2 = 12 x 2 = 24
u7 = 16
u3 = u8 / 2 = 16 / 2 = 8
JAWABAN : D
-
0.80, 1.20, 1.60, 2.00, 2.40, …, 3.20, 3.60, 4.00
A. 2.60
B. 2.80
C. 3.10
D. 3.20
E. 3.50
PEMBAHASAN :
u1 = 0.80
u3 = 2u1 = 2(0.80) = 1.60
u5 = 3u1 = 3(0.80) = 2.40
u7 = 4u1 = 4(0.80) = 3.20
u9 = 5u1 = 5(0.80) = 4.00
u2 = 1.20
u4 = u2 + 0.80 = 1.20 + 0.80 = 2.00
u6 = u4 + 0.80 = 2.00 + 0.80 = 2.80
u8 = u6 + 0.80 = 2.80 + 0.80 = 3.60
JAWABAN : B
-
22, 18, 26, 22, 30, 26, 34, …
A. 0
B. 22
C. 30
D. 38
E. 42
PEMBAHASAN :
u1 = 22
u3 = u1 + 4 = 22 + 4 = 26
u5 = u3 + 4 = 26 + 4 = 30
u7 = u5 + 4 = 30 + 4 = 34
u2 = 18
u4 = u2 + 4 = 18 + 4 = 22
u6 = u4 + 4 = 22 + 4 = 26
u8 = u6 + 4 = 26 + 4 = 30
JAWABAN : C
-
34, 51, 38, 46, 42, 41, …, …, 50
A. 33 dan 39
B. 35 dan 37
C. 37 dan 48
D. 45 dan 47
E. 46 dan 36
PEMBAHASAN :
u1 = 34
u3 = u1 + 4 = 34 + 4 = 38
u5 = u3 + 4 = 38 + 4 = 42
u7 = u5 + 4 = 42 + 4 = 46
u9 = u7 + 4 = 46 + 4 = 50
u2 = 51
u4 = u2 – 5 = 51 – 5 = 46
u6 = u4 – 5 = 46 – 5 = 41
u8 = u6 – 5 = 41 – 5 = 36
JAWABAN : E
-
3, 8, 18, …, 78, 4, 9, …, 39
A. 30 dan 33
B. 36 dan 34
C. 38 dan 19
D. 40 dan 28
E. 56 dan 37
PEMBAHASAN :
u1 = 3
u2 = 2u1 + 2 = 2(3) + 2 = 8
u3 = 2u2 + 2 = 2(8) + 2 = 18
u4 = 2u3 + 2 = 2(18) + 2 = 38
u5 = 2u4 + 2 = 2(38) + 2 = 78
u6 = 4
u7 = 2u6 + 1 = 2(4) + 1 = 9
u8 = 2u7 + 1 = 2(9) + 1 = 19
u9 = 2u8 + 1 = 2(19) + 1 = 39
JAWABAN : C
-
104, 97, 100, 50, 43, 46, 23, …
A. 13
B. 16
C. 18
D. 26
E. 30
PEMBAHASAN :
u1 = 104
u2 = u1 – 7 = 104 – 7 = 97
u3 = u2 + 3 = 97 + 3 = 100
u4 = u3 : 2 = 100 : 2 = 50 = 50
u5 = u4 – 7 = 50 – 7 = 43
u6 = u5 + 3 = 43 + 3 = 46
u7 = u6 : 2 = 46 : 2 = 23
u8 = u7 – 7 = 23 – 7 = 16
JAWABAN : B
-
6, 36, 30, 5, 30, 24, 4, …
A. -2
B. 10
C. 16
D. 24
E. 48
PEMBAHASAN :
u1 = 6
u4 = u1 – 1 = 5
u7 = u4 – 1 = 4
u2 = 36
u5 = u2 – 6 = 30
u8 = u5 – 6 = 24
JAWABAN : D
NOTE : silahkan dikoreksi dan berikan komentar jika ada kesalahan atau masih ada keambiguan baik dalam soal maupun penyelesaian soal ini.
Bagaimana caranya bang kalau pake penalaran numerik ?
Penalaran numerik ?
wah saya kurang tau cara itu dan baru dengar juga hehe
Thx banget bang membantu buat persiapan ane sbmptn,doain ane lulus…:)
Thx banget bang membantu buat persiapan ane sbmptn,doain ane lulus…:) klw bsa bikin yg kyak gini lagi bwt semua tes sbmptnx
Masih gk ngerti . knpaa tiap soal berbeda beda penyelesaiannya
yaaa itu seni ngerjain soalnya. Kalo caranya sama semua, tentu tidak menarik utk dijadikan soal tes