If the sums of n terms of two arithmetic progressions are in the ratio \(\frac{{3n + 5}}{{5n + 7}}\) then their nth terms are in the ration
\(\frac{{3n  1}}{{5n  1}}\)
\(\frac{{3n + 1}}{{5n + 1}}\)
\(\frac{{5n + 1}}{{3n + 1}}\)
\(\frac{{5n  1}}{{3n  1}}\)
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If 18, a, b  3 are in A.P. then a + b =
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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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3
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(1) + (1 + 1) + (1 + 1 + 1) + ....... + (1 + 1 + 1 + ...... n  1 times) = ......
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4
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The 3rd and 8th term of an arithmetic progression are 13 and 2 respectively. What is the 14th term?
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5
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If sum of n terms of an A.P. is 3n^{2} + 5n and T^{m} = 164 then m =
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6
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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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7
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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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8
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If S1 is the sum of an arithmetic progression of ‘n’ odd number of terms and S2 is the sum of the terms of the series in odd places, then \(\frac{{{S_1}}}{{{S_2}}}\)
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9
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The 3^{rd} and 7^{th} term of an arithmetic progression are 9 and 11 respectively. What is the 15^{th} term?
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10
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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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