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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If 18th and 11th term of an A.P. are in the ratio 3 : 2, then its 21st and 5th terms are in the ratio
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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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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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What is the sum of all 3 digit numbers that leave a remainder of '2' when divided by 3?
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5
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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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If the sums of n terms of two arithmetic progressions are in the ratio \(\frac{{3n + 5}}{{5n + 7}}\) then their nth terms are in the ration
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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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The 2nd and 6th term of an arithmetic progression are 8 and 20 respectively. What is the 20th term?
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The two geometric means between the number 1 and 64 are
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The sum of n terms of an A.P. is 3n2 + 5n, then 164 is its
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