The 2nd and 6th term of an arithmetic progression are 8 and 20 respectively. What is the 20th term?
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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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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 the sums of n terms of two arithmetic progressions are in the ratio \(\frac{{3n + 5}}{{5n + 7}}\) then their nth terms are in the ration
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4
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The sum of the first 16 terms of an AP whose first term and third term are 5 and 15 respectively is
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5
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If the sum of three consecutive terms of an increasing A.P. is 51 and the product of the first and third of these terms is 273, then the third term is :
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6
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The 7th and 21st terms of an AP are 6 and -22 respectively. Find the 26th term
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7
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If the sum of the series 2 + 5 + 8 + 11 … is 60100, then the number of terms are
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8
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If S1 is the sum of an arithmetic progression of ‘n’ odd number of terms and S2 is the sum of the terms of the series in odd places, then \(\frac{{{S_1}}}{{{S_2}}}\)
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9
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If four numbers in A.P. are such that their sum is 50 and the greatest number is 4 times the least, then the numbers are
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10
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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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