The 2nd and 8th term of an arithmetic progression are 17 and -1 respectively. What is the 14th term?
-19
-22
-20
-25
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1
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(1) + (1 + 1) + (1 + 1 + 1) + ....... + (1 + 1 + 1 + ...... n - 1 times) = ......
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2
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If Sn denote the sum of the first n terms of an A.P. If S2n = 3Sn , then S3n : Sn is equal to
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3
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If log 2, log (2x -1) and log (2x + 3) are in A.P, then x is equal to ___
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4
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For an A.P. if a25 - a20 = 45, then d equals to:
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5
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The 3rd and 9th term of an arithmetic progression are -8 and 10 respectively. What is the 16th term?
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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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Consider an infinite G.P. with first term a and common ratio r, its sum is 4 and the second term is 3/4, then
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8
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If the sum of p terms of an A.P. is q and the sum of q terms is p, then the sum of (p + q) terms will be
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9
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What is the sum of the first 9 terms of an arithmetic progression if the first term is 7 and last term is 55?
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10
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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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