The sum of the first four terms of an A.P. is 56. The sum of the last four terms is 112. If its first term is 11, the number of terms is
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The sum of first five multiples of 3 is:
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The 2nd and 6th term of an arithmetic progression are 8 and 20 respectively. What is the 20th term?
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3
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For A.P. T18  T8 = ........ ?
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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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5
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The 2^{nd} and 6^{th} term of an arithmetic progression are 8 and 20 respectively. What is the 20^{th} term?
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6
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Find the 15th term of the sequence 20, 15, 10 . . . . .
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7
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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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8
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Which term of the A.P. 92, 88, 84, 80, ...... is 0?
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9
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In an A.P., if d = 4, n = 7, a_{n} = 4, then a is
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10
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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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