The common difference of the A.P. \(\frac{1}{{2b}} \frac{{1 - 6b}}{{2b}} \frac{{1 - 12b}}{{2b}}\) . . . . . is
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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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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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How many terms are there in the GP 5, 20, 80, 320........... 20480?
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4
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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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5
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The 7th and 12th term of an arithmetic progression are -15 and 5 respectively. What is the 16th term?
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6
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What is the sum of the first 12 terms of an arithmetic progression if the 3rd term is -13 and the 6th term is -4?
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7
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For A.P. T18 - T8 = ........ ?
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8
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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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9
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Find the first term of an AP whose 8th and 12th terms are respectively 39 and 59.
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10
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If 18th and 11th term of an A.P. are in the ratio 3 : 2, then its 21st and 5th terms are in the ratio
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