The cost of the new computer = ₹1,00,000
The depreciation rate = 50% per annum
Time period (T) = 2 yrs
Let the cost of computer after 2 yr = ₹ A
A=P(1−R100)T=1,00,000(1−50100)2⇒A=1,00,000×12×12=1,00,000×14∴A=₹ 25,000
Hence, the cost of computer after 2 yrs is ₹ 25000.