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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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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Find the 15th term of the sequence 20, 15, 10 . . . . .
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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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The 7th and 12th term of an arithmetic progression are -15 and 5 respectively. What is the 16th term?
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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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Find the nth term of the following sequence :
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What is the sum of all positive integers up to 1000, which are divisible by 5 and are not divisible by 2?
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A square is drawn by joining the mid points of the sides of a given square in the same way and this process continues indefinitely. If a side of the first square is 4 cm, determine the sum of the areas all the square.
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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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The sum of first n odd natural numbers in
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