Question

what will come in the place of the ? in the following 13,25,61,121,205​

Answer 1

Step-by-step explanation:

where is the mark(?)

plz write the question once again...........

Answer 2

Hi dear

The national number in the series is 313.

205 + 108 = 313

So basically the pattern followed here is the next odd multiple of 12 is added to the number.

13 + ( 12 × 1 ) = 13 + 12 = 25

25 + ( 12 × 3 ) = 25 + 36 = 61

61 + ( 12 × 5 ) = 61 + 60 = 121

121 + ( 12 × 7 ) = 121 + 84 = 205

205 + ( 12 × 9 ) = 205 + 108 = 313

Hope you helped plz marked in brainlest answer