If k, 2k – 1 and 2k + 1 are three consecutive terms of an AP, the value of k is
-2
-3
2
3
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1
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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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2
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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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3
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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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4
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The sum of n terms of an A.P. is 3n2 + 5n, then 164 is its
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5
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The two geometric means between the number 1 and 64 are
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6
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Two A.P.’s have the same common difference. The first term of one of these is 8 and that of the other is 3. The difference between their 30th terms is
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7
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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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8
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If three numbers be in G.P., then their logarithms will be in
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9
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If S1 is the sum of an arithmetic progression of ‘n’ odd number of terms and S2 is the sum of the terms of the series in odd places, then \(\frac{{{S_1}}}{{{S_2}}}\)
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10
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In an A.P., if d = -4, n = 7, an = 4, then a is
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