If Sn denote the sum of the first n terms of an A.P. If S2n = 3Sn , then S3n : Sn is equal to
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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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2
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The common difference of the A.P. \(\frac{1}{3}, \frac{{1 - 3b}}{3} , \frac{{1 - 6b}}{3}\) . . . . . . is
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3
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What is the sum of the first 12 terms of an arithmetic progression if the first term is -19 and last term is 36?
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4
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The 4th and 7th term of an arithmetic progression are 11 and -4 respectively. What is the 15th term?
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5
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Which term of the A.P. 92, 88, 84, 80, ...... is 0?
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6
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The 2nd and 6th term of an arithmetic progression are 8 and 20 respectively. What is the 20th term?
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7
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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
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8
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(1) + (1 + 1) + (1 + 1 + 1) + ....... + (1 + 1 + 1 + ...... n - 1 times) = ......
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9
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The 3rd and 9th term of an arithmetic progression are -8 and 10 respectively. What is the 16th term?
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10
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If 7 times the seventh term of an Arithmetic Progression (AP) is equal to 11 times its eleventh term, then the 18th term of the AP will be
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