Jawaban:
49, 71, 97
Penjelasan dengan langkah-langkah:
Diketahui : 1, 7, 17, 31, … , … , …
x + 1 = 7
x + 7 = 17
x + 17 = 31
x + 31 = ??
7 – 1 = 6
17 – 7 = 10
31 -17 = 14
( 10 – 6 = 4 )«pola 1 kali
( 14 – 10 = 4 )«pola 1 kali
( 14 – 6 = 8 )«pola loncat 2 kali
1, 7, 17, 31, 49, 71, 97 dan seterusnyaaa
7 – 1 = 6
17 – 7 = 10
31 – 17 = 14
49 – 31 = 18
71 – 49 = 22
97 – 71 = 26
jadi hasilnya ialah 1, 7, 17, 31, 49, 71, 97