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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What is the sum of the first 17 terms of an arithmetic progression if the first term is -20 and last term is 28?
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2
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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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3
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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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4
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The sum of the first 16 terms of an AP whose first term and third term are 5 and 15 respectively is
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5
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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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6
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The sum of first five multiples of 3 is:
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7
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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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8
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The sum of n terms of an A.P. is 3n2 + 5n, then 164 is its
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9
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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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10
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What is the sum of the first 11 terms of an arithmetic progression if the 3rd term is -1 and the 8th term is 19?
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