The 7th and 21st terms of an AP are 6 and -22 respectively. Find the 26th term
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Two A.P.’s have the same common difference. The first term of one of these is 8 and that of the other is 3. The difference between their 30th terms is
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The number of terms of the A.P. 3, 7, 11, 15, ....... to be taken so that the sum is 406 is
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The 3rd and 7th term of an arithmetic progression are -9 and 11 respectively. What is the 15th term?
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4
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If a, b, c are in A.P., then (a – c)2/ (b2 – ac) =
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5
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After striking the floor, a rubber ball rebounds to 4/5th of the height from which it has fallen. Find the total distance that it travels before coming to rest if it has been gently dropped from a height of 120 metres.
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6
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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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7
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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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8
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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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9
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What is the sum of the first 12 terms of an arithmetic progression if the first term is -19 and last term is 36?
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10
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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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