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1., , On the construction work of a flyover bridge there were 320 workers, initially. The number of workers were increased by 25% every year. Find, the number of workers after 2 years., , A shepherd has 200 sheep with him. Find the number of sheeps with him after, 3 years if the increase in number of sheeps is 8% every year., , In a forest there are 40,000 trees. Find the expected number of trees after 3, years if the objective is to increase the number at the rate 5% per year., , The cost price of a machine is 2,50,000. If the rate of depreciation is 10% per, year find the depreciation in price of the machine after two years., , Find the compound interest if the amount of a certain principal after two years, is %4036.80 at the rate of 16 p.c.p.a.