M/s Ansal Mills Ltd. takes a periodic inventory of their stock of chemical X at the end of each month. The physical inventory taken on April 30 shows a balance of 1000 litres of chemical X in-hand @ Rs. 2.28 per litre.

The following purchases were made during May:

May 1: 14,000 litres @ Rs. 2.30 per litre

May 7: 10,000 litres @ Rs. 2.32 per litre

May 9: 20,000 litres @ Rs. 2.33 per litre

May 25: 5,000 litres @ Rs. 2.35 per litre

A physical verification on 31st May discloses that there is a stock of 10,000 litres. You are required to compute the inventory value on 31st May, by each of the following methods:

a) FIFO method

b) LIFO method

c) Weighted average method. (6 marks)