Anyone Know The Next Number In This Sequence?
Whats The Pattern?
1, 3, 6, 10, 15, __
2007-05-16 06:27:26 · 16 answers · asked by Lala 2 in Science & Mathematics ➔ Mathematics
1, 3, 6, 10, 15, _____
Pattern
1 + 2 = 3
3 + 3 = 6
6 + 4 = 10
10 + 5 = 15
15 + 6 = 21. . . <=. . The next number
21 + 7 = 28
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2007-05-16 06:31:29 · answer #1 · answered by SAMUEL D 7 · 0⤊ 0⤋
the answer is 21.
The pattern is the difference between the previous number increase by 1 as you go on
ie. 1+2 = 3; 3+3 = 6; 6+4 = 10; 10+5 = 15; 15+6 = 21
Hope that helps
2007-05-16 06:32:24 · answer #2 · answered by crunchtime88 1 · 0⤊ 0⤋
First of all your answer will be 21. The pattern is since you started off with 1 you add 2 to get 3 you add 3 to get 6 you add 4 to get 10 you add 5 to get 15 then you add 6 to get 21 so forth.
2007-05-16 09:29:16 · answer #3 · answered by ksryan1994 2 · 0⤊ 0⤋
1 + 2 = 3
3 + 3 = 6
6 + 4 = 10
10+ 5 = 15
15+ 6 = 21
21+ 7 = 28
..
2007-05-16 06:37:25 · answer #4 · answered by onedwd 1 · 0⤊ 0⤋
21
2007-05-16 06:32:20 · answer #5 · answered by Anonymous · 0⤊ 0⤋
21
2007-05-16 06:31:12 · answer #6 · answered by Anonymous · 0⤊ 0⤋
21
2007-05-16 06:29:43 · answer #7 · answered by p_s_u_paul 2 · 1⤊ 0⤋
Those are known as the 'triangular' numbers.
Put 1 at the peak of a triangle
next row +2 = 3
next row + 3 = 6
next row +4 = 10
next row +5 = 15
next row +6 = 21
next row +7 = 28
etc
See how you're building a triangle of from the peak down?
2007-05-16 06:34:53 · answer #8 · answered by modulo_function 7 · 1⤊ 0⤋
21...
1-3 = 2
3-6 = 3
6-10 = 4
10-15=5
15-21=6
2007-05-16 06:30:08 · answer #9 · answered by Anonymous · 1⤊ 0⤋
1
plus 2
=3
plus 3
=6
plus 4
=10
plus 5
=15
plus 6
=21
2007-05-16 06:33:30 · answer #10 · answered by Anonymous · 0⤊ 0⤋