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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The sum of the first and third term of an arithmetic progression is 12 and the product of first and second term is 24, then first term is
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2
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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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3
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The sum of the first four terms of an A.P. is 56. The sum of the last four terms is 112. If its first term is 11, the number of terms is
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4
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In an A.P., if d = -4, n = 7, an = 4, then a is
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5
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Let S denotes the sum of n terms of an A.P. whose first term is a. If the common difference d is given by d = Sn – k Sn-1 + Sn-2 then k =
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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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How many terms are there in the GP 5, 20, 80, 320........... 20480?
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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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The number of terms of the A.P. 3, 7, 11, 15, ....... to be taken so that the sum is 406 is
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10
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What is the sum of the first 13 terms of an arithmetic progression if the first term is -10 and last term is 26?
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