What is the sum of the first 12 terms of an arithmetic progression if the 3rd term is -13 and the 6th term is -4?
-30
41
-23
-34
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1
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For an A.P. if a25 - a20 = 45, then d equals to:
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2
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If the fifth term of a GP is 81 and first term is 16, what will be the 4th term of the GP?
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3
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The nth term of an A.P., the sum of whose n terms is Sn, is
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4
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If an A.P. has a = 1, tn = 20 and sn = 399, then value of n is :
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5
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The 3rd and 7th term of an arithmetic progression are -9 and 11 respectively. What is the 15th term?
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6
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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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7
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The sum of n terms of an A.P. is 3n2 + 5n, then 164 is its
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8
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If the sum of the series 2 + 5 + 8 + 11 … is 60100, then the number of terms are
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9
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The first term of an Arithmetic Progression is 22 and the last term is -11. If the sum is 66, the number of terms in the sequence are:
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10
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What is the sum of the first 11 terms of an arithmetic progression if the 3rd term is -1 and the 8th term is 19?
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