PSAT/NMSQT Question: Download PSAT PDF

The sum of third and ninth term of an A.P is 8. Find the sum of the first 11 terms of the progression.

1. 44
2. 22
3. 19
4. None of these

Ans :A

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Given A = 265 and B = (264+263+262+...+20)	A piece of equipment cost a certain factory Rs. 600,000. If it depreciates in value, 15% the first year, 13.5% 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 the original cost?