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Showing content with the highest reputation on 07/24/15 in all areas
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I calculated with 660.60 and the price is 600.60. Just a small typo as I often do...1 point
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Still, I did assume that a+b+c+d = 40. Indeed 12+11+9+8 = 40. My counterexample holds.1 point
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I d not see that coming. The classic solution is to find numbers that sandwiched between 2 prime numbers.1 point
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1 point