The value k of a machine depreciates every year at the rate of 10% on its value at the beginning of that year. If the present value of the machine is Rs.729, its worth 3 years ago was :
Rs.947.10
Rs.800
Rs.1000
Rs.750.87
Explanation:
P=(1−10100)3=729(1−10100)3=729
P=Rs.(729×10×10×109×9×9)(729×10×10×109×9×9)=Rs.1000
P=(1−10100)3=729(1−10100)3=729
P=Rs.(729×10×10×109×9×9)(729×10×10×109×9×9)=Rs.1000