The 3rd and 8th term of an arithmetic progression are -13 and 2 respectively. What is the 14th term?
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For an A.P. if a25 - a20 = 45, then d equals to:
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2
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The two geometric means between the number 1 and 64 are
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3
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If an A.P. has a = 1, tn = 20 and sn = 399, then value of n is :
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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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If sum of n terms of an A.P. is 3n2 + 5n and Tm = 164 then m =
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6
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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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7
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Two A.P.’s have the same common difference. The first term of one of these is 8 and that of the other is 3. The difference between their 30th terms is
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8
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If three numbers be in G.P., then their logarithms will be in
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9
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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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10
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How many terms are there in 20, 25, 30 . . . . . . 140?
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