The 2nd and 6th term of an arithmetic progression are 8 and 20 respectively. What is the 20th term?
56
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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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2
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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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3
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What is the sum of all 3 digit numbers that leave a remainder of '2' when divided by 3?
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4
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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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5
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The 2nd and 8th term of an arithmetic progression are 17 and -1 respectively. What is the 14th term?
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6
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What is the sum of the following series? -64, -66, -68, ......, -100
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7
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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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8
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The 4th and 7th term of an arithmetic progression are 11 and -4 respectively. What is the 15th term?
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9
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If the first term of an A.P. is 2 and common difference is 4, then the sum of its 40 term is
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10
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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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