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November 11 is the day for singletons to be reminded of their relationship status, or simply buy stuff to make you feel better. Joking apart, Single's Day has now morphed into the day people go online to shop.
Special vouchers and discounts are mounting up, and customers are using their math skills to find out a way to spend less and purchase more. But it may simply be too complicated, that only a Mathematics Olympian medal winner can figure out.
Is that true?
