What is the sum of the following series? -64, -66, -68, ......, -100
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If 7 times the seventh term of an Arithmetic Progression (AP) is equal to 11 times its eleventh term, then the 18th term of the AP will be
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If log 2, log (2x -1) and log (2x + 3) are in A.P, then x is equal to ___
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3
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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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4
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Find the 15th term of the sequence 20, 15, 10 . . . . .
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5
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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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6
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The 3rd and 8th term of an arithmetic progression are -13 and 2 respectively. What is the 14th term?
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7
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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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8
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What is the sum of the first 9 terms of an arithmetic progression if the first term is 7 and last term is 55?
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9
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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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10
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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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