If four numbers in A.P. are such that their sum is 50 and the greatest number is 4 times the least, then the numbers are
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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. \(\frac{1}{{2b}} \frac{{1 - 6b}}{{2b}} \frac{{1 - 12b}}{{2b}}\) . . . . . is
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3
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For A.P. T18 - T8 = ........ ?
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4
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Sum of n terms of the series \(\sqrt 2 + \sqrt 8 + \sqrt {18} + \sqrt {32} + \) ....... is
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5
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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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6
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The sum of first five multiples of 3 is:
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7
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If k, 2k – 1 and 2k + 1 are three consecutive terms of an AP, the value of k is
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8
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15th term of A.P., x - 7, x - 2, x + 3, ........ is
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9
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The 2nd and 8th term of an arithmetic progression are 17 and -1 respectively. What is the 14th term?
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10
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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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