In an A.P., if d = 4, n = 7, an = 4, then a is
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How many terms are there in the GP 5, 20, 80, 320........... 20480?
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If sum of n terms of an A.P. is 3n^{2} + 5n and T^{m} = 164 then m =
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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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The common difference of the A.P. \(\frac{1}{3}, \frac{{1  3b}}{3} , \frac{{1  6b}}{3}\) . . . . . . is
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A piece of equipment cost a certain factory 6,00,000. If it depreciates in value, 15% the first year, 13.5% the next year, 12% the third year, and so on, what will be its value at the end of 10 years, all percentages applying to the original cost?
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The 4th and 7th term of an arithmetic progression are 11 and 4 respectively. What is the 15th term?
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The sum of first n odd natural numbers in
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If three numbers be in G.P., then their logarithms will be in
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In an A.P., if d = 4, n = 7, a_{n} = 4, then a is
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If the 7^{th} term of a H.P. is 1/10 and the 12^{th} term is 1/25, then the 20^{th} term is
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