If log 2, log (2x -1) and log (2x + 3) are in A.P, then x is equal to ___
5/2
log25
log32
3/2
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1
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Which term of the A.P. 92, 88, 84, 80, ...... is 0?
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2
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Find the 15th term of the sequence 20, 15, 10 . . . . .
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3
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15th term of A.P., x - 7, x - 2, x + 3, ........ is
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4
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The 2nd and 8th term of an arithmetic progression are 17 and -1 respectively. What is the 14th term?
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5
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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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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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In an A.P., if d = -4, n = 7, an = 4, then a is
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8
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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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9
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Let S denotes the sum of n terms of an A.P. whose first term is a. If the common difference d is given by d = Sn – k Sn-1 + Sn-2 then k =
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10
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A boy agrees to work at the rate of one rupee on the first day, two rupees on the second day, and four rupees on third day and so on. How much will the boy get if he started working on the 1st of February and finishes on the 20th of February?
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