Which term of the A.P. 24, 21, 18, ............ is the first negative term?
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If a, b, c are in A.P., then (a – c)2/ (b2 – ac) =
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2
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The sum of first five multiples of 3 is:
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3
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If the sums of n terms of two arithmetic progressions are in the ratio \(\frac{{3n + 5}}{{5n + 7}}\) then their nth terms are in the ration
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4
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The sum of first n odd natural numbers in
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5
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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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6
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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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7
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If k, 2k – 1 and 2k + 1 are three consecutive terms of an AP, the value of k is
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8
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(1) + (1 + 1) + (1 + 1 + 1) + ....... + (1 + 1 + 1 + ...... n - 1 times) = ......
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9
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If four numbers in A.P. are such that their sum is 50 and the greatest number is 4 times the least, then the numbers are
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10
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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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