The 7th and 21st terms of an AP are 6 and -22 respectively. Find the 26th term
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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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2
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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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3
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If a, b, c are in A.P., then (a – c)2/ (b2 – ac) =
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4
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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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5
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The sum of first n odd natural numbers in
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6
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If the 7th term of a H.P. is 1/10 and the 12th term is 1/25, then the 20th term is
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7
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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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8
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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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9
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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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10
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If three numbers be in G.P., then their logarithms will be in
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