Created by StemPy LabConsider all the two-digit natural numbers that leave a remainder of 3 when divided by 7. They form an arithmetic progression. What is the sum of all these numbers?
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← The positive numbers x and y are such that 4, x, y are three consecutive terms of a geometric progression, and x, y, 12 are three consecutive terms of an arithmetic progression. What is the value of x + y?An arithmetic progression has its ninth term equal to five times its second term, while its twelfth term is 47. Find the total of its first twenty terms. →
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