What is the sum of the first 9 terms of an arithmetic progression if the first term is 7 and last term is 55?
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The 3rd and 7th term of an arithmetic progression are 9 and 11 respectively. What is the 15th term?
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2
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If the sum of the series 2 + 5 + 8 + 11 … is 60100, then the number of terms are
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3
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The 7th and 21st terms of an AP are 6 and 22 respectively. Find the 26th term
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4
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If the sum of p terms of an A.P. is q and the sum of q terms is p, then the sum of (p + q) terms will be
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5
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If log 2, log (2^{x} 1) and log (2^{x} + 3) are in A.P, then x is equal to ___
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6
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The common difference of the A.P. \(\frac{1}{{2b}} \frac{{1  6b}}{{2b}} \frac{{1  12b}}{{2b}}\) . . . . . is
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7
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Find the n^{th} term of the following sequence :
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8
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The first and last term of an A.P. is a and l respectively. If S is the sum of all the terms of the A.P. and the common difference is given by \(\frac{{{l^2}  {a^2}}}{{k  \left( {l + a} \right)}}\) then k = ?
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9
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What is the sum of the following series? 64, 66, 68, ......, 100
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10
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The sum of the first and third term of an arithmetic progression is 12 and the product of first and second term is 24, then first term is
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