What is this series 2,6,12,20,30,42, . . .?

Answer 1

This series is n(n+1)

2,6,12,20,30,42,56,72,90,. . .

Answer 2

You are simply adding the previous difference plus two to find the next number in the sequence. In other words, you first add 4, then 6, then 8, then 10, then 12.

The next numbers in the sequence will be 56, 72, 90, 110, 132, 156, ...

Answer 3

You are simply adding the previous difference plus two to find the next number in the sequence. In other words, you first add 4, then 6, then 8, then 10, then 12.

The next numbers in the sequence will be 56, 72, 90, 110, 132, 156, ...

Answer 4

You are simply adding the previous difference plus two to find the next number in the sequence. In other words, you first add 4, then 6, then 8, then 10, then 12.

The next numbers in the sequence will be 56, 72, 90, 110, 132, 156, ...

Answer 5

(2) +4=, +6=, +8=, +10=, +12=...

Answer 6

The answer are in Arithmatic Progression,First from 2,

4 has been added to 2,then after that 4 plus 2 (=6)has been added to th next number 6,then followed by 6 plus 2 ( =8) added to next number,then 8 plus 2(=10) added to next number,then 10 plus 2 (=12) added to next number,then after that continues same so u have to add 2 always..................

first 2 is there...

add 4 to 2 then gets 6 so now the eqn is 2,6
then add 4 plus 2 which is 6 to the previous got answer 6 so gets 12,
so eqn becomes 2,6,12,

then add 6 plus 2 so 8 to the previous got answer 12 so gets 20,
so eqn becomes 2,6,12,20,
same continuous,,,

Answer 7

56

Answer 8

56

You have to do (n+1)-n
If you do so you´ll get
6-2=4
12-6=6
20-12=8
30-20=10
42-30=12

So you have the even number. Next you`ll have to add 14 (which is the next even number) to 42

42+14=56
56+16=72
72+18= 90

and so on...

Answer 9

n(n+1)

Answer 10

Arithemic Progression