Select the option that is related to the third term in the same way as the second term is related to the first term and the sixth term is related to the fifth term.

21 : 196 :: 29 : ? :: 38 : 315

252

21 : 196 :: 29 : ? :: 38 : 315

The logic followed here is :

( Ist number + 7 ) × 7 = IInd number

AS

21 : 196

( 21 + 7 ) × 7

= 28 × 7

= 196

and

38 : 315

(38 + 7 ) × 7

= 45 × 7

= 315

Similarly

29 : ?

(29 + 7 ) × 7

= 36 × 7

= 252