1,2,4,3...
2007-11-04 01:06:44 · 4 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
It's a bad question, in that 1, 2, 4, 3 is not enough to establish a pattern. Everything said so far could work. Here's what came to my mind:
1,2,4,3,5,6,8,7,9,10,12,11,...
which would make the 28th term 27.
2007-11-04 14:42:02 · answer #1 · answered by brashion 5 · 0⤊ 0⤋
one possible solution:
the sequence begins with
X1 = 1
X2 = 2
Xn = 5 - Xn-2
so X3 = 5 - X1 = 4
and X4 = 5 - X2 = 3
X28 = 5 - X26 = 3
this creates a pattern that repeats itself as 1,2,4,3,1,2,4,3,1,...
2007-11-04 01:20:44 · answer #2 · answered by James B 2 · 0⤊ 0⤋
your answer is-19
2007-11-04 01:13:15 · answer #3 · answered by Pritam K 2 · 0⤊ 0⤋
Think it as two series
1,4,7,10,13,16,19,...
2,3,4,5,6,7,8,9,10,...
2007-11-04 01:10:44 · answer #4 · answered by iyiogrenci 6 · 0⤊ 0⤋