Help needed on question of Re-insurance

Anurag Gupta (Service) (41 Points)

30 June 2021  

Please see below the question on Re-insurance:

and here is the solution to it:

My main question is if at Step 3, the Cession for 1st Surplus Treaty is Rs. 24 lac then why in 4th Step, the cession amount is only Rs. 20 lac? Second: If the Max liability in 1st treaty is 25 lac then how we will know that out of this Re-insurer's share will be 24 lac and not 25 lac?