Ca final - sfm - practice manual - capital budgeting chapter

Narendra JR (CA Final Student) (123 Points)

31 July 2016  
I have a query in SFM - Practice Manual(Jan 2015 edition) - Capital Budgeting Chapter - Q. No. 36 - Pg. No. 2.59 I am not understanding (B) part answer of this Q. From where they bring 1900,900,100 amt. I am not understanding it please help thank you in adavance