The first term of an Arithmetic Progression is 22 and the last term is 11. If the sum is 66, the number of terms in the sequence are:
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1
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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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2
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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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3
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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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4
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The common difference of the A.P. \(\frac{1}{3}, \frac{{1  3b}}{3} , \frac{{1  6b}}{3}\) . . . . . . is
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5
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The 3^{rd} and 7^{th} term of an arithmetic progression are 9 and 11 respectively. What is the 15^{th} term?
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6
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If 18, a, b  3 are in A.P. then a + b =
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7
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The 3rd and 7th term of an arithmetic progression are 9 and 11 respectively. What is the 15th term?
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8
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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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9
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The common difference of the A.P. \(\frac{1}{{2b}} \frac{{1  6b}}{{2b}} \frac{{1  12b}}{{2b}}\) . . . . . is
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10
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How many terms are there in 20, 25, 30 . . . . . . 140?
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