Date 1. The following are the information on materials handled by the store keeper of Al Hassan Engineering Company SAOG during the month of January, 2020. Particulars Units and rate (OMR) Jan. 1 Opening balance 400 units @ OMR 4 Purchases 100 units @ OMR 4.25 Purchases 200 units @ OMR 4.10 Purchases 400 units @ OMR 4.50 200 units @ OMR 4 200 units Issue 5 12 20 25 Purchases Issue 10 300 units 15 Issue 26 Issue 100 units 200 units 300 units 30 Issue You are required to prepare stores ledger adopting the following methods of inventory valuation: Simple average method b. Last In First Out method 2. The following are the information on wage systems followed by Al Hassan Engineering Company SAOG during the month of November, 2020. Particulars Bader Nasser Time allowed 40 hours 40 hours Time taken 34 hours 46 hours Rate per hour OMR 100MR 10 You are required to calculate wages of workers for the under: Halsey Plan Halsey - Weir Plan and Rowan Plan