Question

What can be used in place of X to complete the below given series?
236, 230, X, 201, 174, 136

Answer 1

219 will come at place of X  in  236, 230, X, 201, 174, 136

Given:

236, 230, X, 201, 174, 136

To Find:

What comes at place of X  

Solution:

Understand the series

236       230         X          201         174         136

       6            11            18         27          38

             5             7            9            11

                     2              2           2

3rd Difference is constant = 2

(230 - 11 = 219)  , ( 219 - 18 = 210)

Hence 219 will come at place of X

236  -  6  = 230

230 -   11  = 219

219  -   18  = 201

201  -   27  = 174

174 -    38  =  136

Difference is increasing by 5 , 7 , 9 , 11 and so on

219 will come at place of X