15th term of A.P., x - 7, x - 2, x + 3, ........ is
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1
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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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2
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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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3
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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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4
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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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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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Find the nth term of the following sequence :
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7
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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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8
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For an A.P. if a25 - a20 = 45, then d equals to:
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9
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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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10
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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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