Question

9. 5, 25, 61, 113, 181,?
(1) 265
(3) 275
(2) 375
(4) 365
(Kerala Stage 2014.15)​

Answer 1

25 61 113 181 265 ---> 365  

20 36 52 68 84 --> 100  

16 16 16 16 -> 16

Answer 2

Answer:

181

Step-by-Step explanation:

5+(16x1 + 4) = 25

25 + (16x2 + 4) = 61

61 + (16x3 + 4) = 113

113 + (16x4 + 4)= 181

-----------------------OR------------------

5 + (4x5) = 25

25 + (4x9) = 61

61 + (4x13) =113

113 + (4x17) = 181