You are presented with the following information relating to the first week of a month. The transactions in connection with the materials are as follows:

1st day

Purchased 40 units @ Rs. 15 per unit

2nd day

Purchased 20 units @ Rs. 16.50 per unit

3rd day

Issued 30 units

4th day

Purchased 50 units @ Rs. 17.10 per unit

5th day

Issued 20 units

6th day

Issued 40 units

Calculate the cost of materials under (1) FIFO (2) LIFO and (3) Weighted average method of issue of material and the value of closing stock under the aforesaid materials