the value of a machine depreciates at the rate 10 per annum, Percentage, General Mathematics

Question:The value of a machine depreciates at the rate of 10% per annum. If its present value is Tk. 162000,What will be its worth after 2 years ?What was the value of the machine 2 years ago ?

Answer Value of the machine after 2 years  

 = `Tk. [162000 xx (1 -10/100)^2]`

 = `Tk.(162000 xx 9/10 xx 9/10)` 

 = Tk. 131220.

 Value of the machine 2 years ago 

 = `Tk.{162000/(1 -10/100)^2}` 

 = `Tk (162000 xx 10/9 xx 10/9)` 

 = Tk. 200000.

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The value of a machine depreciates at the rate of 10% per annum. If its present value is Tk. 162000,What will be its worth after 2 years ?What was the value of the machine 2 years ago ?

Question:The value of a machine depreciates at the rate of 10% per annum. If its present value is Tk. 162000,What will be its worth after 2 years ?What was the value of the machine 2 years ago ?

Answer Value of the machine after 2 years = `Tk. [162000 xx (1 -10/100)^2]` = `Tk.(162000 xx 9/10 xx 9/10)` = Tk. 131220. Value of the machine 2 years ago = `Tk.{162000/(1 -10/100)^2}` = `Tk (162000 xx 10/9 xx 10/9)` = Tk. 200000.