The sum of n terms of an A.P. is 3n2 + 5n, then 164 is its
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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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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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In an A.P., if d = -4, n = 7, an = 4, then a is
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4
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The common difference of the A.P. \(\frac{1}{3}, \frac{{1 - 3b}}{3} , \frac{{1 - 6b}}{3}\) . . . . . . 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 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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7
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If 18, a, b - 3 are in A.P. then a + b =
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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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Find the first term of an AP whose 8th and 12th terms are respectively 39 and 59.
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10
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If a + 1, 2a + 1, 4a - 1 are in A.P., then the value of a is:
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