Example 22. A piece of equipment cost a certain factory Rs. 6,00,000. If it depreciates in value, 15% the first year; 13½% the next year 12% the third year, and so on, what will be its value at the end of 10 years, all percentages applying to original cost.

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Q: Example 20. The monthly salary of a person was Rs. 320 for each of the first three years. He next…

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