On 1st April, 2016, X Ltd. Purchased a machine costing Rs 4,00,000 and spent Rs 50,000 on its installation. The estimated life of the machinery is 10 years, after which its residual value will be Rs 50,000 only. Find the amount of annual depreciation according to the Fixed Instalment Method and prepare Machinery Account for the first three years. The books are closed on 31st March every year.