MATHEMATICS · Multi-part · CBSE · Mathematics · Sequences and Series · Sequences and Series
Problem
A company buys a machine for Rs 3,00,000. Its value depreciates by 20\% at the end of every year. Treat the successive yearly depreciations as forming a geometric progression. Answer the following:
(i) Calculate the total amount by which the machine depreciates in the first five years.
(ii) Find the least number of complete years after which the total depreciation will exceed 90\% of the original cost.