Question

2.4.7.12.19......... 43 find missing no

Answer 1

[Rows]

2, 4 , 7 , 12 , 19 ,.., 43
 +2 +3 +5  +7   ⇒This can be seen is the sequence of prime numbers

So,definitely next increments is 11 and 13.
19 +11 =30
30+13 =43

So ,missing number is 30.


O_O