For A.P. T18  T8 = ........ ?
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If 18, a, b  3 are in A.P. then a + b =
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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 sum of first n odd natural numbers in
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The 2^{nd} and 8^{th} term of an arithmetic progression are 17 and 1 respectively. What is the 14^{th} term?
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The sum of first five multiples of 3 is:
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Find the 15th term of the sequence 20, 15, 10 . . . . .
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7
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If log 2, log (2^{x} 1) and log (2^{x} + 3) are in A.P, then x is equal to ___
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In an A.P., if d = 4, n = 7, an = 4, then a is
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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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What is the sum of the following series? 64, 66, 68, ......, 100
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