1,2,9,?,65,126
options-
1]28
2]82
3]99
4]108
how?
2006-09-11 03:26:35 · 14 answers · asked by sim 2 in Science & Mathematics ➔ Mathematics
The answer is 28.
The sequence is n^3+1 with n incrementing by one for each number.
0^3 + 1 = 1
1^3 + 1 = 2
2^3 + 1 = 8
3^3 + 1 = 28
4^3 + 1 = 65
5^3 + 1 = 126
6^3 + 1 = 217
etc
2006-09-11 03:33:36 · answer #1 · answered by Bob G 6 · 1⤊ 0⤋
28
2006-09-11 10:47:31 · answer #2 · answered by Gane 2 · 0⤊ 0⤋
28
2006-09-11 10:35:01 · answer #3 · answered by Jaime C 1 · 0⤊ 0⤋
28
2006-09-11 10:34:10 · answer #4 · answered by Anonymous · 0⤊ 0⤋
28
2006-09-11 10:32:58 · answer #5 · answered by puneetinder92 2 · 1⤊ 0⤋
28, x^3+1=3^3+1=28
2006-09-11 11:16:28 · answer #6 · answered by shek z 1 · 0⤊ 0⤋
28!!!
it is evident that sequence is of increasing numbers.. so opt 2,3,4 are greater than the next defined num (65). so the answer is 28.
although this is not the correct logic, i think this will turn out to be AGP (arithmetic-geometric progression), but the answer is right for sure.
2006-09-11 10:33:52 · answer #7 · answered by Anonymous · 0⤊ 0⤋
it is 28 as nth number =(n-1)^3+1
2006-09-11 12:11:43 · answer #8 · answered by Mein Hoon Na 7 · 0⤊ 0⤋
The only pattern that I can see is that the numbers are getting larger--so, 28.
2006-09-11 10:35:58 · answer #9 · answered by bruinfan 7 · 0⤊ 0⤋
28. Complete guess. 10 points?
2006-09-11 10:31:52 · answer #10 · answered by Anonymous · 0⤊ 1⤋