A machine was purchased on 1st January 1987. It was depreciated by written down value method at the rate of 10% P.A. The depreciated value of machine as on 1st January 1990 is Rs. 13,122. The cost of machine on 1st January 1990 was
A. Rs. 20,000
B. Rs. 18,000
C. Rs. 22,000
D. Rs. 19,000
Answer: Option B

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