If the nth term of an A.P. is 2n + 1, then the sum of first n terms of the A.P. is
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If the 3rd and the 5th term of an arithmetic progression are 13 and 21, what is the 13th term?
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What is the sum of all 3 digit numbers that leave a remainder of '2' when divided by 3?
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A piece of equipment cost a certain factory 6,00,000. 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?
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Which term of the A.P. 92, 88, 84, 80, ...... is 0?
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Find the nth term of the following sequence :
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If k, 2k – 1 and 2k + 1 are three consecutive terms of an AP, the value of k is
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In an A.P., if d = 4, n = 7, an = 4, then a is
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The number of terms of the A.P. 3, 7, 11, 15, ....... to be taken so that the sum is 406 is
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Find the n^{th} term of the following sequence :
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If k, 2k – 1 and 2k + 1 are three consecutive terms of an AP, the value of k is
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