Question

The value of a machine depreciates every year by 20$\%$. If the present value of the machine be Rs. 160000, what was its value last year ?

Answer 1

Depreciation in the value of machine = 20$\%$ Present value = Rs. 160000 Then value of machine one year ago = $\frac{160000\times 100}{100-20}$ = $\frac{160000\times 100}{80}$ = Rs. 200000