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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The 3rd and 8th term of an arithmetic progression are 13 and 2 respectively. What is the 14th term?
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A square is drawn by joining the mid points of the sides of a given square in the same way and this process continues indefinitely. If a side of the first square is 4 cm, determine the sum of the areas all the square.
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If the first term of an A.P. is 2 and common difference is 4, then the sum of its 40 term is
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If k, 2k – 1 and 2k + 1 are three consecutive terms of an AP, the value of k is
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What is the sum of the first 13 terms of an arithmetic progression if the first term is 10 and last term is 26?
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If S1 is the sum of an arithmetic progression of ‘n’ odd number of terms and S2 is the sum of the terms of the series in odd places, then \(\frac{{{S_1}}}{{{S_2}}}\)
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The 3^{rd} and 7^{th} term of an arithmetic progression are 9 and 11 respectively. What is the 15^{th} term?
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If an A.P. has a = 1, tn = 20 and sn = 399, then value of n is :
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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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How many terms are there in the GP 5, 20, 80, 320........... 20480?
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