The cost of inventory as per physical verification as on 24th March was Rs.4,00,000. Between 24th March and 31st March , the following transaction took place:
(a) Purchases Rs.2,00,000 out of which 20% goods were returned
(b) Sales of Rs.2,00,000 out of which 20% goods were returned. Goods are sold at a profit of 25% on cost. The cost of inventory as per books is __________.