How many terms are there in the GP 5, 20, 80, 320........... 20480?
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1
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Find the nth term of the following sequence :
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2
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What is the sum of all 3 digit numbers that leave a remainder of '2' when divided by 3?
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3
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If 18, a, b - 3 are in A.P. then a + b =
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4
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If the 7th term of a H.P. is 1/10 and the 12th term is 1/25, then the 20th term is
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5
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What is the sum of the first 17 terms of an arithmetic progression if the first term is -20 and last term is 28?
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6
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If 18th and 11th term of an A.P. are in the ratio 3 : 2, then its 21st and 5th terms are in the ratio
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7
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The first and last term of an A.P. is a and l respectively. If S is the sum of all the terms of the A.P. and the common difference is given by \(\frac{{{l^2} - {a^2}}}{{k - \left( {l + a} \right)}}\) then k = ?
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8
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Consider an infinite G.P. with first term a and common ratio r, its sum is 4 and the second term is 3/4, then
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9
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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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10
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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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