What is the sum of the following series? 64, 66, 68, ......, 100
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A bacteria gives birth to two new bacteria in each second and the life span of each bacteria is 5 seconds. The process of the reproduction is continuous until the death of the bacteria. initially there is one newly born bacteria at time t = 0, the find the total number of live bacteria just after 10 seconds :
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Sum of n terms of the series \(\sqrt 2 + \sqrt 8 + \sqrt {18} + \sqrt {32} + \) ....... is
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3
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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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4
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The sum of first five multiples of 3 is:
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What is the sum of the first 12 terms of an arithmetic progression if the 3^{rd} term is 13 and the 6^{th} term is 4?
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6
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Find the 15th term of the sequence 20, 15, 10 . . . . .
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7
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In an A.P., if d = 4, n = 7, a_{n} = 4, then a is
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8
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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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9
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If 18, a, b  3 are in A.P. then a + b =
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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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