given series (i)

12 , 30 , 120 , 460 , 1368 , 2730

and similar one (ii)

16, A, B , C , D , E

find what will come in place of D....

series logic for both series i,ii are same

@sur17 : It is 19000. Total cost - 2400000 (80*30000) - 2301000 (78*29500) - 80000

If you also give options, there is possibility that the question can be solved faster then above solution

Q1. I what ratio does the x-axis divide the line segment joining the points (2,-3) & (5,6).

__trisect__(Does trisecting mean dividing the line segment into 3 equal parts..?????) the line segment joining (1,-2) & (-3,4).