A plant was purchased for rs 60000 on 28th march 1996.Some additions costing rs 3600 to the plant were made on18th may 1997 and some more additions , costing rs 3600to the plant were made on 18th may 1997 and some more addition costing rs 3900 were made on 17th October 1998 .Depreciation on the diminishing balance method is to be written off at 10% in 1996 , at 15% in 1997 and at 20% in 1998 ,Calculation being made in terms of months proportionalely to the period for which the plant as well as additions have been used .Write up the plant account for each from 1996 to 1998 assuming 31st December as the closing date