please help me

(A) From the following information calculate cash flow from investing activities: Particulars 31.03.2014 Rs. 31.03.2015 Rs. he Machinery (at Cost) Accumulated Depreciation Patents Goodwill Investment 5,00,000 1,00,000 2,00,000 1,50,000 2,50,000 5,50,000 1,20,000 1,20,000 1,00,000 5,00,000 Additional Information During the year, a machine costing Rs. 50,000 with its accumulated depreciation of Rs. 25,000 was sold for Rs. 20,000. Patents were written off to the extent of Rs. 60,000 and some patents were sold at a profit of Rs. 10,000. C) 40% of the investments held in the beginning of the year were sold at 10% Profit. Interest received on investment Rs. 25,500. e) Dividend received on investment Rs. 8,500. Rent received Rs. 5,000