The 3rd and 6th term of an arithmetic progression are 13 and -5 respectively. What is the 11th term?
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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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2
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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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If sum of n terms of an A.P. is 3n2 + 5n and Tm = 164 then m =
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4
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If the sum of n terms of an A.P. be 3n2 + n and its common difference is 6, then its first term is
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5
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Sum of n terms of the series \(\sqrt 2 + \sqrt 8 + \sqrt {18} + \sqrt {32} + \) ....... is
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6
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In an A.P., if d = -4, n = 7, an = 4, then a is
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7
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A boy agrees to work at the rate of one rupee on the first day, two rupees on the second day, and four rupees on third day and so on. How much will the boy get if he started working on the 1st of February and finishes on the 20th of February?
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8
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The sum of the first 16 terms of an AP whose first term and third term are 5 and 15 respectively is
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9
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(1) + (1 + 1) + (1 + 1 + 1) + ....... + (1 + 1 + 1 + ...... n - 1 times) = ......
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10
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If the sum of three consecutive terms of an increasing A.P. is 51 and the product of the first and third of these terms is 273, then the third term is :
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