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ICSE Class 9 Answered

the value of a machine depreciated by 10%per year for the first two year and 15%per year during the third year .express the total depreciation of the machine in per cent 
Asked by Sathyarpillai28 | 09 Aug, 2019, 08:41: PM
answered-by-expert Expert Answer
Let the value of machine is 100rs
1st year = 100 - 10% of 100 = 90
2nd year = 90 - 10% of 90 = 81
3rd year = 81 - 15% of 81 = 68.85
 
% depreciation = [(100 - 68.85)/100] × 100 = 31.15%
Answered by Arun | 12 Aug, 2019, 10:18: AM

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