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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1
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Which term of the A.P. 92, 88, 84, 80, ...... is 0?
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2
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Find the nth term of the following sequence :
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3
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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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4
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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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5
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If the nth term of an A.P. is 2n + 1, then the sum of first n terms of the A.P. is
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6
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If the sum of n terms of an A.P. be 3n2 + n and its common difference is 6, then its first term is
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7
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The sum of first n odd natural numbers in
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8
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If the 7^{th} term of a H.P. is 1/10 and the 12^{th} term is 1/25, then the 20^{th} term is
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9
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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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10
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What is the sum of the following series? 64, 66, 68, ......, 100
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