The sum of n terms of an A.P. is 3n2 + 5n, then 164 is its
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The sum of first n odd natural numbers in
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The 2nd and 6th term of an arithmetic progression are 8 and 20 respectively. What is the 20th term?
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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 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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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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The 3rd and 9th term of an arithmetic progression are 8 and 10 respectively. What is the 16th term?
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(1) + (1 + 1) + (1 + 1 + 1) + ....... + (1 + 1 + 1 + ...... n  1 times) = ......
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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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The 7th and 12th term of an arithmetic progression are 15 and 5 respectively. What is the 16th term?
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For an A.P. if a25  a20 = 45, then d equals to:
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