Question

If the value of machine depreciates by 10% of its value at the beginning of the year and its present value is estimated as rs. 10,935. What was its value three years back?

Answer 1

suppose at begining value =x ,depreciation rate =10%
after 1st year value would be =0.9x
after 2nd year = 0.81x
after 3rd year = 0.729x
as given after 3 years value is = 10,935
so,0.729x = 10,935
: x =15,000