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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1
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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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2
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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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3
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In an A.P., if d = -4, n = 7, an = 4, then a is
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4
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The nth term of an A.P., the sum of whose n terms is Sn, is
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5
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The 3rd and 9th term of an arithmetic progression are -8 and 10 respectively. What is the 16th term?
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6
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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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7
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If the sum of n terms of an A.P. is 3n2 + 5n then which of its terms is 164 ?
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8
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A boy agrees to work at the rate of one rupee on the first day, two rupees on the second day, and four rupees on third day and so on. How much will the boy get if he started working on the 1st of February and finishes on the 20th of February?
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9
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The first and last term of an A.P. is a and l respectively. If S is the sum of all the terms of the A.P. and the common difference is given by \(\frac{{{l^2} - {a^2}}}{{k - \left( {l + a} \right)}}\) then k = ?
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10
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Sum of n terms of the series \(\sqrt 2 + \sqrt 8 + \sqrt {18} + \sqrt {32} + \) ....... is
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