A Textile company that dyes fabric has purchased a new coal fired boiler whose first cost is R120 000 with an estimated life of ten years. The estimated salvage value of the equipment at the end of its lifetime is R30 000. 2.1 Determine the depreciation charge and book value at the end of various years using the straight-line method of depreciation. [7.5] 2.2 Show the calculations for depreciation and book value on a yearly basis for declining balance method by assuming 0.3 for K. [5.5] 2.3 Find the depreciation and book value for the 5th year using the sum of the year digits method of depreciation. [4] 2.4 Compute D, and By using the sinking fund method of depreciation with an interest rate of 10% compounded annually. [4]