The number of terms of the A.P. 3, 7, 11, 15, ....... to be taken so that the sum is 406 is
5
10
12
14
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1
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If k, 2k – 1 and 2k + 1 are three consecutive terms of an AP, the value of k is
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2
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Two A.P.’s have the same common difference. The first term of one of these is 8 and that of the other is 3. The difference between their 30th terms is
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3
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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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4
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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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5
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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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6
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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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7
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Find the first term of an AP whose 8th and 12th terms are respectively 39 and 59.
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8
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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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9
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The 3rd and 6th term of an arithmetic progression are 13 and -5 respectively. What is the 11th term?
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10
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For an A.P. if a25 - a20 = 45, then d equals to:
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