Doubt on excise problem

anveshgupta (Student) (94 Points)

16 December 2013  
roduction 1500 units, quantity sold 510 units @ 250 per unit, 840 units @ 200 per unit, sample clearances 35 units and the balance 150 units are in stock. Hence, the assessable value is Rs._________
pls give answer with explanation and txs in advance